Browse Issues:

HIGHLIGHTED ARTICLES

Dimensionality and irreversibility of field-induced transitions in SrDy2O4

C. Bidaud, O. Simard, G. Quirion, B. Prévost, S. Daneau, A. D. Bianchi, H. A. Dabkowska, and J. A. Quilliam

Phys. Rev. B 93, 060404(R) (2016) - Published 12 February, 2016

In this work, the ultrasound velocity is measured in the frustrated spin liquid material SrDy2O4 as a function of magnetic field and temperature. Experimental data reveals a complex phase diagram that depends heavily on the direction of the magnetic field. Whereas a dome for the three-dimensional long-range magnetic order is induced for magnetic field applied along the b axis, no finite temperature magnetic order is observed for other field directions. When passing between the spin liquid and magnetically ordered phase, significant irreversibility is observed. “Solidification” of the spin liquid (through applied field) proceeds through three distinct steps while melting of the magnetic order into the spin-liquid phase is a more continuous process.

Nodeless superconductivity in noncentrosymmetric PbTaSe2 single crystals

G. M. Pang, M. Smidman, L. X. Zhao, Y. F. Wang, Z. F. Weng, L. Q. Che, Y. Chen, X. Lu, G. F. Chen, and H. Q. Yuan

Phys. Rev. B 93, 060506(R) (2016) - Published 5 February, 2016

Noncentrosymmetric superconductors such as PbTaSe2 have been the focus of intensive study due to their unconventional properties and they have also recently been proposed as candidates for topological superconductivity and Majorana fermions. To test this, it is important to characterize the superconducting order parameter. The authors here report precise temperature-dependent measurements of the London penetration depth of PbTaSe2. The results indicate fully gapped s-wave BCS-type superconductivity, which is rather puzzling. This compound is known to have a topologically nontrivial band structure and a strong antisymmetric spin-orbit coupling, which, in 2D superconductors, is expected to produce an order parameter with mixed spin singlet and spin triplet components.

Inverse design of disordered stealthy hyperuniform spin chains

Eli Chertkov, Robert A. DiStasio, Jr., Ge Zhang, Roberto Car, and Salvatore Torquato

Phys. Rev. B 93, 064201 (2016) - Published 3 February, 2016

It has recently been shown that disordered hyperuniform many-particle systems represent new distinguishable states of amorphous matter that are poised between a crystal and a liquid are are endowed with novel physical and thermodynamic properties. Such systems have shown to exist as ground states, i.e., at a temperature of absolute zero. Such “stealthy” and hyperuniform states are unique in that they are transparent to radiation for a range of wavelengths. In this paper, we ask whether Ising models of magnets, called spin chains in one dimension, can possess spin interactions that enable their ground states to be disordered, stealthy, and hyperuniform. Using inverse statistical-mechanical theoretical methods, we do demonstrate the existence of such states, which should be experimentally realizable.

Gapless quantum excitations from an icelike splayed ferromagnetic ground state in stoichiometric Yb2Ti2O7

J. Gaudet, K. A. Ross, E. Kermarrec, N. P. Butch, G. Ehlers, H. A. Dabkowska, and B. D. Gaulin

Phys. Rev. B 93, 064406 (2016) - Published 3 February, 2016

The authors report elastic and inelastic neutron scattering results on the quantum spin ice candidate Yb2Ti2O7. The experiments were performed on a well characterized stoichiometric powder, which displays a large and sharp heat capacity anomaly at 0.26 K. The authors show that, at low temperature, Yb2Ti2O7 exhibits long-range order with an ice-like ferromagnetic structure. However, the onset temperature is much higher than the temperature of the heat capacity anomaly. The spin excitations were found to be gapless on an energy scale < 0.09 meV and organized into a continuum of scattering with vestiges of highly overdamped ferromagnetic spin waves. The same spin dynamics is also observed for the single crystals, which indicates that those spin excitations are robust upon weak disorder.

All-in-all-out magnetic domain wall conduction in a pyrochlore iridate heterointerface

T. C. Fujita, M. Uchida, Y. Kozuka, W. Sano, A. Tsukazaki, T. Arima, and M. Kawasaki

Phys. Rev. B 93, 064419 (2016) - Published 17 February, 2016

Metallic surface states emerging at all-in-all-out type antiferromagnetic domain walls in bulk pyrochlore iridates have recently been observed. Such bulk crystals, however, inevitably contain huge amounts of the domains at random, and so it is quite challenging to investigate and utilize these novel surface conducting states. The results presented here are for a pyrochlore iridate heterointerface, which is realized by an advanced thin film growth technique. The authors successfully demonstrate the detection and control of a surface state linked to the antiferromagnetic domain wall, guiding further efforts for utilizing such states for surface transport in electronics and spintronics applications as well as for investigating the emergent topological transport at the interface.

Spin injection and spin transport in paramagnetic insulators

Satoshi Okamoto

Phys. Rev. B 93, 064421 (2016) - Published 22 February, 2016

Insulators do not transport electrical currents. Recent experimental reports instead show magnetic insulators can conduct spin current in terms of magnons (excitations from magnetic ordering). The spin current could be converted to electric current by the inverse spin Hall effect. Thus, magnetic insulators may not be regarded as insulating. Recent experimental work has suggested such spin transport effects exist even above magnetic transition temperatures, challenging the conventional approach starting from magnetic ordering. In this paper, an alternative approach is taken to this problem using the Schwinger boson method. It is shown that spin pumping and spin current transport are possible at elevated temperatures, even higher than transition temperatures, suggesting that paramagnetic insulators could be used for spintronics applications.

Wiedemann-Franz law in the underdoped cuprate superconductor YBa2Cu3Oy

G. Grissonnanche, F. Laliberté, S. Dufour-Beauséjour, M. Matusiak, S. Badoux, F. F. Tafti, B. Michon, A. Riopel, O. Cyr-Choinière, J. C. Baglo, B. J. Ramshaw, R. Liang, D. A. Bonn, W. N. Hardy, S. Krämer, D. LeBoeuf, D. Graf, N. Doiron-Leyraud, and Louis Taillefer

Phys. Rev. B 93, 064513 (2016) - Published 22 February, 2016

The authors measured the electrical and thermal Hall conductivities of YBa2Cu3Oy in high magnetic fields to investigate the nature of the nonsuperconducting ground state in underdoped cuprates. They found that the Wiedemann-Franz law is obeyed in the T=0 limit as soon as the vortex solid melts at high field. This shows that there is no vortex liquid at T=0 and it imposes a clear constraint on the nature of excitations in the enigmatic pseudogap phase of cuprate superconductors.

RAPID COMMUNICATIONS

Inhomogeneous, disordered, and partially ordered systems

Extended slow dynamical regime close to the many-body localization transition

David J. Luitz, Nicolas Laflorencie, and Fabien Alet

Phys. Rev. B 93, 060201(R) (2016) - Published 17 February, 2016

Dynamics, dynamical systems, lattice effects

Role of van der Waals forces in the diffraction of noble gases from metal surfaces

M. del Cueto, A. S. Muzas, G. Füchsel, F. Gatti, F. Martín, and C. Díaz

Phys. Rev. B 93, 060301(R) (2016) - Published 8 February, 2016

Magnetism

Dynamics of Dirac strings and monopolelike excitations in chiral magnets under a current drive

Shi-Zeng Lin and Avadh Saxena

Phys. Rev. B 93, 060401(R) (2016) - Published 10 February, 2016

Reinventing atomistic magnetic simulations with spin-orbit coupling

Dilina Perera, Markus Eisenbach, Don M. Nicholson, G. Malcolm Stocks, and David P. Landau

Phys. Rev. B 93, 060402(R) (2016) - Published 10 February, 2016

Observation of magnon-mediated electric current drag at room temperature

H. Wu, C. H. Wan, X. Zhang, Z. H. Yuan, Q. T. Zhang, J. Y. Qin, H. X. Wei, X. F. Han, and S. Zhang

Phys. Rev. B 93, 060403(R) (2016) - Published 12 February, 2016

Dimensionality and irreversibility of field-induced transitions in SrDy2O4

C. Bidaud, O. Simard, G. Quirion, B. Prévost, S. Daneau, A. D. Bianchi, H. A. Dabkowska, and J. A. Quilliam

Phys. Rev. B 93, 060404(R) (2016) - Published 12 February, 2016

In this work, the ultrasound velocity is measured in the frustrated spin liquid material SrDy2O4 as a function of magnetic field and temperature. Experimental data reveals a complex phase diagram that depends heavily on the direction of the magnetic field. Whereas a dome for the three-dimensional long-range magnetic order is induced for magnetic field applied along the b axis, no finite temperature magnetic order is observed for other field directions. When passing between the spin liquid and magnetically ordered phase, significant irreversibility is observed. “Solidification” of the spin liquid (through applied field) proceeds through three distinct steps while melting of the magnetic order into the spin-liquid phase is a more continuous process.

Instabilities of spin-liquid states in a quantum kagome antiferromagnet

M. Gomilšek, M. Klanjšek, M. Pregelj, F. C. Coomer, H. Luetkens, O. Zaharko, T. Fennell, Y. Li, Q. M. Zhang, and A. Zorko

Phys. Rev. B 93, 060405(R) (2016) - Published 16 February, 2016

Anomalous Hall effect in Mn1.5Ga/Ta and Mn1.5Ga/Pt bilayers: Modification from spin-orbit coupling of heavy metals

K. K. Meng, J. Miao, X. G. Xu, J. X. Xiao, J. H. Zhao, and Y. Jiang

Phys. Rev. B 93, 060406(R) (2016) - Published 18 February, 2016

Spin-S kagome quantum antiferromagnets in a field with tensor networks

Thibaut Picot, Marc Ziegler, Román Orús, and Didier Poilblanc

Phys. Rev. B 93, 060407(R) (2016) - Published 19 February, 2016

Resonance-inclined optical nuclear spin polarization of liquids in diamond structures

Q. Chen, I. Schwarz, F. Jelezko, A. Retzker, and M. B. Plenio

Phys. Rev. B 93, 060408(R) (2016) - Published 24 February, 2016

Emergence of skyrmions from rich parent phases in the molybdenum nitrides

Wei Li, Chiming Jin, Renchao Che, Wensen Wei, Langsheng Lin, Lei Zhang, Haifeng Du, Mingliang Tian, and Jiadong Zang

Phys. Rev. B 93, 060409(R) (2016) - Published 26 February, 2016

Incommensurate spin-density-wave antiferromagnetism in CeRu2Al2B

A. Bhattacharyya, D. D. Khalyavin, F. Krüger, D. T. Adroja, A. M. Strydom, W. A. Kockelmann, and A. D. Hillier

Phys. Rev. B 93, 060410(R) (2016) - Published 29 February, 2016

Superfluidity and superconductivity

Gate-tuned superconductor-insulator transition in (Li,Fe)OHFeSe

B. Lei, Z. J. Xiang, X. F. Lu, N. Z. Wang, J. R. Chang, C. Shang, A. M. Zhang, Q. M. Zhang, X. G. Luo, T. Wu, Z. Sun, and X. H. Chen

Phys. Rev. B 93, 060501(R) (2016) - Published 1 February, 2016

Orbital order and spin nematicity in the tetragonal phase of the electron-doped iron pnictides NaFe1−xCoxAs

R. Zhou, L. Y. Xing, X. C. Wang, C. Q. Jin, and Guo-qing Zheng

Phys. Rev. B 93, 060502(R) (2016) - Published 1 February, 2016

Structural and magnetic phase diagram of CrAs and its relationship with pressure-induced superconductivity

Yao Shen, Qisi Wang, Yiqing Hao, Bingying Pan, Yu Feng, Qingzhen Huang, L. W. Harriger, J. B. Leao, Yang Zhao, R. M. Chisnell, J. W. Lynn, Huibo Cao, Jiangping Hu, and Jun Zhao

Phys. Rev. B 93, 060503(R) (2016) - Published 1 February, 2016

Nematic magnetoelastic effect contrasted between Ba(Fe1−xCox)2As2 and FeSe

Yuwen Hu, Xiao Ren, Rui Zhang, Huiqian Luo, Shigeru Kasahara, Tatsuya Watashige, Takasada Shibauchi, Pengcheng Dai, Yan Zhang, Yuji Matsuda, and Yuan Li

Phys. Rev. B 93, 060504(R) (2016) - Published 2 February, 2016

Coupling to real and virtual phonons in tunneling spectroscopy of superconductors

Jasmin Jandke, Patrik Hlobil, Michael Schackert, Wulf Wulfhekel, and Jörg Schmalian

Phys. Rev. B 93, 060505(R) (2016) - Published 4 February, 2016

Nodeless superconductivity in noncentrosymmetric PbTaSe2 single crystals

G. M. Pang, M. Smidman, L. X. Zhao, Y. F. Wang, Z. F. Weng, L. Q. Che, Y. Chen, X. Lu, G. F. Chen, and H. Q. Yuan

Phys. Rev. B 93, 060506(R) (2016) - Published 5 February, 2016

Noncentrosymmetric superconductors such as PbTaSe2 have been the focus of intensive study due to their unconventional properties and they have also recently been proposed as candidates for topological superconductivity and Majorana fermions. To test this, it is important to characterize the superconducting order parameter. The authors here report precise temperature-dependent measurements of the London penetration depth of PbTaSe2. The results indicate fully gapped s-wave BCS-type superconductivity, which is rather puzzling. This compound is known to have a topologically nontrivial band structure and a strong antisymmetric spin-orbit coupling, which, in 2D superconductors, is expected to produce an order parameter with mixed spin singlet and spin triplet components.

Peculiarities of superconductivity in the single-layer FeSe/SrTiO3 interface

Lev P. Gor'kov

Phys. Rev. B 93, 060507(R) (2016) - Published 12 February, 2016

Optimization of vortex pinning by nanoparticles using simulations of the time-dependent Ginzburg-Landau model

A. E. Koshelev, I. A. Sadovskyy, C. L. Phillips, and A. Glatz

Phys. Rev. B 93, 060508(R) (2016) - Published 29 February, 2016

ARTICLES

Structure, structural phase transitions, mechanical properties, defects

First-principles equation of state calculations of warm dense nitrogen

K. P. Driver and B. Militzer

Phys. Rev. B 93, 064101 (2016) - Published 1 February, 2016

Direct mapping of microscopic polarization in ferroelectric x(BiScO3)−(1−x)(PbTiO3) throughout its morphotropic phase boundary

K. Datta, A. Richter, M. Göbbels, D. A. Keen, and R. B. Neder

Phys. Rev. B 93, 064102 (2016) - Published 3 February, 2016

Synthesis of ruthenium hydride

M. A. Kuzovnikov and M. Tkacz

Phys. Rev. B 93, 064103 (2016) - Published 4 February, 2016

Structural phase transition and phonon instability in Cu12Sb4S13

A. F. May, O. Delaire, J. L. Niedziela, E. Lara-Curzio, M. A. Susner, D. L. Abernathy, M. Kirkham, and M. A. McGuire

Phys. Rev. B 93, 064104 (2016) - Published 8 February, 2016

Low-energy optical phonon modes in the caged compound LaRu2Zn20

K. Wakiya, T. Onimaru, S. Tsutsui, T. Hasegawa, K. T. Matsumoto, N. Nagasawa, A. Q. R. Baron, N. Ogita, M. Udagawa, and T. Takabatake

Phys. Rev. B 93, 064105 (2016) - Published 9 February, 2016

Comparison of the high-pressure behavior of the cerium oxides Ce2O3 and CeO2

M. J. Lipp, J. R. Jeffries, H. Cynn, J.-H. Park Klepeis, W. J. Evans, D. R. Mortensen, G. T. Seidler, Y. Xiao, and P. Chow

Phys. Rev. B 93, 064106 (2016) - Published 9 February, 2016

Three-dimensional kinetic Monte Carlo simulations of cubic transition metal nitride thin film growth

F. Nita, C. Mastail, and G. Abadias

Phys. Rev. B 93, 064107 (2016) - Published 10 February, 2016

Highly tunable piezocaloric effect in antiferroelectric PbZrO3

S. Lisenkov, B. K. Mani, J. Cuozzo, and I. Ponomareva

Phys. Rev. B 93, 064108 (2016) - Published 12 February, 2016

Equilibrium, metastability, and hysteresis in a model spin-crossover material with nearest-neighbor antiferromagnetic-like and long-range ferromagnetic-like interactions

Per Arne Rikvold, Gregory Brown, Seiji Miyashita, Conor Omand, and Masamichi Nishino

Phys. Rev. B 93, 064109 (2016) - Published 16 February, 2016

Macroscopic lamellar heterophase pattern in Pb(Mg1/3Nb2/3)O3−PbTiO3 single crystals

I. Rafalovskyi, M. Guennou, I. Gregora, and J. Hlinka

Phys. Rev. B 93, 064110 (2016) - Published 16 February, 2016

Rotational instability of the electric polarization and divergence of the shear elastic compliance

F. Cordero, H. T. Langhammer, T. Müller, V. Buscaglia, and P. Nanni

Phys. Rev. B 93, 064111 (2016) - Published 16 February, 2016

Ab initio study of the ferroelectric strain dependence and 180∘ domain walls in the barium metal fluorides BaMgF4 and BaZnF4

Maribel Núñez Valdez, Hendrik Th. Spanke, and Nicola A. Spaldin

Phys. Rev. B 93, 064112 (2016) - Published 17 February, 2016

FeAs2 formation and electronic nematic ordering: Analysis in terms of structural transformations

A. Pishtshev and P. Rubin

Phys. Rev. B 93, 064113 (2016) - Published 22 February, 2016

Thickness dependence of crystal and electronic structures within heteroepitaxially grown BiFeO3 thin films

In-Tae Bae, Hiroshi Naganuma, Tomohiro Ichinose, and Kazuhisa Sato

Phys. Rev. B 93, 064115 (2016) - Published 24 February, 2016

Inhomogeneous, disordered, and partially ordered systems

Inverse design of disordered stealthy hyperuniform spin chains

Eli Chertkov, Robert A. DiStasio, Jr., Ge Zhang, Roberto Car, and Salvatore Torquato

Phys. Rev. B 93, 064201 (2016) - Published 3 February, 2016

It has recently been shown that disordered hyperuniform many-particle systems represent new distinguishable states of amorphous matter that are poised between a crystal and a liquid are are endowed with novel physical and thermodynamic properties. Such systems have shown to exist as ground states, i.e., at a temperature of absolute zero. Such “stealthy” and hyperuniform states are unique in that they are transparent to radiation for a range of wavelengths. In this paper, we ask whether Ising models of magnets, called spin chains in one dimension, can possess spin interactions that enable their ground states to be disordered, stealthy, and hyperuniform. Using inverse statistical-mechanical theoretical methods, we do demonstrate the existence of such states, which should be experimentally realizable.

Nanoductility in silicate glasses is driven by topological heterogeneity

Bu Wang, Yingtian Yu, Mengyi Wang, John C. Mauro, and Mathieu Bauchy

Phys. Rev. B 93, 064202 (2016) - Published 9 February, 2016

Cavity polariton condensate in a disordered environment

Martin Thunert, Alexander Janot, Helena Franke, Chris Sturm, Tom Michalsky, María Dolores Martín, Luis Viña, Bernd Rosenow, Marius Grundmann, and Rüdiger Schmidt-Grund

Phys. Rev. B 93, 064203 (2016) - Published 9 February, 2016

Dynamics anomaly in high-density amorphous ice between 0.7 and 1.1 GPa

Philip H. Handle and Thomas Loerting

Phys. Rev. B 93, 064204 (2016) - Published 12 February, 2016

Dynamics, dynamical systems, lattice effects

Nanoscale mechanisms for the reduction of heat transport in bismuth

Maxime Markov, Jelena Sjakste, Giorgia Fugallo, Lorenzo Paulatto, Michele Lazzeri, Francesco Mauri, and Nathalie Vast

Phys. Rev. B 93, 064301 (2016) - Published 1 February, 2016

Raman phonons in the ferroelectric-like metal LiOsO3

Feng Jin, Anmin Zhang, Jianting Ji, Kai Liu, Le Wang, Youguo Shi, Yong Tian, Xiaoli Ma, and Qingming Zhang

Phys. Rev. B 93, 064303 (2016) - Published 22 February, 2016

Magnetism

Dual-pump manipulation of ultrafast demagnetization in TbFeCo

Tuyuan Cheng, Jing Wu, Tao Liu, Xiao Zou, Jianwang Cai, Roy W. Chantrell, and Yongbing Xu

Phys. Rev. B 93, 064401 (2016) - Published 1 February, 2016

Antiferromagnetism and hidden order in isoelectronic doping of URu2Si2

M. N. Wilson, T. J. Williams, Y.-P. Cai, A. M. Hallas, T. Medina, T. J. Munsie, S. C. Cheung, B. A. Frandsen, L. Liu, Y. J. Uemura, and G. M. Luke

Phys. Rev. B 93, 064402 (2016) - Published 1 February, 2016

Magnetic domain-wall dynamics in wide permalloy strips

Virginia Estévez and Lasse Laurson

Phys. Rev. B 93, 064403 (2016) - Published 2 February, 2016

Functional renormalization group approach to noncollinear magnets

B. Delamotte, M. Dudka, D. Mouhanna, and S. Yabunaka

Phys. Rev. B 93, 064405 (2016) - Published 3 February, 2016

Gapless quantum excitations from an icelike splayed ferromagnetic ground state in stoichiometric Yb2Ti2O7

J. Gaudet, K. A. Ross, E. Kermarrec, N. P. Butch, G. Ehlers, H. A. Dabkowska, and B. D. Gaulin

Phys. Rev. B 93, 064406 (2016) - Published 3 February, 2016

The authors report elastic and inelastic neutron scattering results on the quantum spin ice candidate Yb2Ti2O7. The experiments were performed on a well characterized stoichiometric powder, which displays a large and sharp heat capacity anomaly at 0.26 K. The authors show that, at low temperature, Yb2Ti2O7 exhibits long-range order with an ice-like ferromagnetic structure. However, the onset temperature is much higher than the temperature of the heat capacity anomaly. The spin excitations were found to be gapless on an energy scale < 0.09 meV and organized into a continuum of scattering with vestiges of highly overdamped ferromagnetic spin waves. The same spin dynamics is also observed for the single crystals, which indicates that those spin excitations are robust upon weak disorder.

High-frequency magnetization dynamics of individual atomic-scale magnets

S. Krause, A. Sonntag, J. Hermenau, J. Friedlein, and R. Wiesendanger

Phys. Rev. B 93, 064407 (2016) - Published 4 February, 2016

Inverse spin-Hall effect voltage generation by nonlinear spin-wave excitation

Laura Feiler, Kathrin Sentker, Manuel Brinker, Nils Kuhlmann, Falk-Ulrich Stein, and Guido Meier

Phys. Rev. B 93, 064408 (2016) - Published 4 February, 2016

Dynamic cantilever magnetometry of individual CoFeB nanotubes

B. Gross, D. P. Weber, D. Rüffer, A. Buchter, F. Heimbach, A. Fontcuberta i Morral, D. Grundler, and M. Poggio

Phys. Rev. B 93, 064409 (2016) - Published 5 February, 2016

Towards ferromagnetic quantum criticality in FeGa3−xGex:Ga71 NQR as a zero-field microscopic probe

M. Majumder, M. Wagner-Reetz, R. Cardoso-Gil, P. Gille, F. Steglich, Y. Grin, and M. Baenitz

Phys. Rev. B 93, 064410 (2016) - Published 5 February, 2016

Quantum sweeps, synchronization, and Kibble-Zurek physics in dissipative quantum spin systems

Loïc Henriet and Karyn Le Hur

Phys. Rev. B 93, 064411 (2016) - Published 8 February, 2016

Spin transfer torque and dc bias magnetic field effects on the magnetization reversal time of nanoscale ferromagnets at very low damping: Mean first-passage time versus numerical methods

D. J. Byrne, W. T. Coffey, W. J. Dowling, Y. P. Kalmykov, and S. V. Titov

Phys. Rev. B 93, 064413 (2016) - Published 9 February, 2016

Canted stripe phase evolution due to a spin reorientation transition in Fe films grown on Ag(001) vicinal surface

M. Dąbrowski, M. Cinal, M. Przybylski, G. Chen, A. T. N'Diaye, A. K. Schmid, and J. Kirschner

Phys. Rev. B 93, 064414 (2016) - Published 10 February, 2016

Observation of magnetic order in multiferroic SmMn2O5 studied by resonant x-ray magnetic scattering

Y. Ishii, S. Horio, M. Mitarashi, T. Sakakura, M. Fukunaga, Y. Noda, T. Honda, H. Nakao, Y. Murakami, and H. Kimura

Phys. Rev. B 93, 064415 (2016) - Published 16 February, 2016

Skyrmionic magnetization configurations at chiral magnet/ferromagnet heterostructures

Yuki Kawaguchi, Yukio Tanaka, and Naoto Nagaosa

Phys. Rev. B 93, 064416 (2016) - Published 16 February, 2016

First-order magnetization process as a tool of magnetic-anisotropy determination: Application to the uranium-based intermetallic U3Cu4Ge4

D. I. Gorbunov, M. S. Henriques, A. V. Andreev, Y. Skourski, M. Richter, L. Havela, and J. Wosnitza

Phys. Rev. B 93, 064417 (2016) - Published 16 February, 2016

Thermally driven spin torques in layered magnetic insulators

Scott A. Bender and Yaroslav Tserkovnyak

Phys. Rev. B 93, 064418 (2016) - Published 17 February, 2016

All-in-all-out magnetic domain wall conduction in a pyrochlore iridate heterointerface

T. C. Fujita, M. Uchida, Y. Kozuka, W. Sano, A. Tsukazaki, T. Arima, and M. Kawasaki

Phys. Rev. B 93, 064419 (2016) - Published 17 February, 2016

Metallic surface states emerging at all-in-all-out type antiferromagnetic domain walls in bulk pyrochlore iridates have recently been observed. Such bulk crystals, however, inevitably contain huge amounts of the domains at random, and so it is quite challenging to investigate and utilize these novel surface conducting states. The results presented here are for a pyrochlore iridate heterointerface, which is realized by an advanced thin film growth technique. The authors successfully demonstrate the detection and control of a surface state linked to the antiferromagnetic domain wall, guiding further efforts for utilizing such states for surface transport in electronics and spintronics applications as well as for investigating the emergent topological transport at the interface.

Effect of Gd polarization on the large magnetocaloric effect of GdCrO4 in a broad temperature range

E. Palacios, C. Tomasi, R. Sáez-Puche, A. J. Dos santos-García, F. Fernández-Martínez, and R. Burriel

Phys. Rev. B 93, 064420 (2016) - Published 19 February, 2016

Spin injection and spin transport in paramagnetic insulators

Satoshi Okamoto

Phys. Rev. B 93, 064421 (2016) - Published 22 February, 2016

Insulators do not transport electrical currents. Recent experimental reports instead show magnetic insulators can conduct spin current in terms of magnons (excitations from magnetic ordering). The spin current could be converted to electric current by the inverse spin Hall effect. Thus, magnetic insulators may not be regarded as insulating. Recent experimental work has suggested such spin transport effects exist even above magnetic transition temperatures, challenging the conventional approach starting from magnetic ordering. In this paper, an alternative approach is taken to this problem using the Schwinger boson method. It is shown that spin pumping and spin current transport are possible at elevated temperatures, even higher than transition temperatures, suggesting that paramagnetic insulators could be used for spintronics applications.

Localized magnetic fields enhance the field sensitivity of the gyrotropic resonance frequency of a magnetic vortex

Jasper P. Fried and Peter J. Metaxas

Phys. Rev. B 93, 064422 (2016) - Published 22 February, 2016

One-dimensional short-range magnetic correlations in the magnetoelectric pyroxene CaMnGe2O6

L. Ding, C. V. Colin, C. Darie, J. Robert, F. Gay, and P. Bordet

Phys. Rev. B 93, 064423 (2016) - Published 23 February, 2016

Quantification of thermal fluctuations in stripe domain patterns

T. N. G. Meier, M. Kronseder, M. Zimmermann, and C. H. Back

Phys. Rev. B 93, 064424 (2016) - Published 23 February, 2016

Determination of the exchange constant of Tb0.3Dy0.7Fe2 by broadband ferromagnetic resonance spectroscopy

D. B. Gopman, J. W. Lau, K. P. Mohanchandra, K. Wetzlar, and G. P. Carman

Phys. Rev. B 93, 064425 (2016) - Published 23 February, 2016

Coupled antiferromagnetic spin-12 chains in green dioptase Cu6[Si6O18]·6H2O

A. Podlesnyak, L. M. Anovitz, A. I. Kolesnikov, M. Matsuda, T. R. Prisk, S. Toth, and G. Ehlers

Phys. Rev. B 93, 064426 (2016) - Published 23 February, 2016

Ferromagnetic ordering of minority Ce3+ spins in a quasi-skutterudite Ce3Os4Ge13 single crystal

Om Prakash, A. Thamizhavel, and S. Ramakrishnan

Phys. Rev. B 93, 064427 (2016) - Published 24 February, 2016

Stability of skyrmion lattices and symmetries of quasi-two-dimensional chiral magnets

Utkan Güngördü, Rabindra Nepal, Oleg A. Tretiakov, Kirill Belashchenko, and Alexey A. Kovalev

Phys. Rev. B 93, 064428 (2016) - Published 24 February, 2016

Magnetoelastic coupling forbidden by time-reversal symmetry: Spin-direction-dependent magnetoelastic coupling on MnO, CoO, and NiO

Sanghyun Lee, Yoshihisa Ishikawa, Ping Miao, Shuki Torii, Toru Ishigaki, and Takashi Kamiyama

Phys. Rev. B 93, 064429 (2016) - Published 24 February, 2016

Ginzburg-Landau theory for skyrmions in inversion-symmetric magnets with competing interactions

Shi-Zeng Lin and Satoru Hayami

Phys. Rev. B 93, 064430 (2016) - Published 25 February, 2016

NdN: An intrinsic ferromagnetic semiconductor

E.-M. Anton, J. F. McNulty, B. J. Ruck, M. Suzuki, M. Mizumaki, V. N. Antonov, J. W. Quilty, N. Strickland, and H. J. Trodahl

Phys. Rev. B 93, 064431 (2016) - Published 26 February, 2016

Field-dependent energy barriers in Co/CoO core-shell nanoparticles

P. Nieves, D. Kechrakos, and O. Chubykalo-Fesenko

Phys. Rev. B 93, 064432 (2016) - Published 26 February, 2016

Vacancies in Kitaev quantum spin liquids on the three-dimensional hyperhoneycomb lattice

G. J. Sreejith, Subhro Bhattacharjee, and R. Moessner

Phys. Rev. B 93, 064433 (2016) - Published 26 February, 2016

Competing valence bond and symmetry-breaking Mott states of spin-32 fermions on a honeycomb lattice

D. Jakab, E. Szirmai, M. Lewenstein, and G. Szirmai

Phys. Rev. B 93, 064434 (2016) - Published 29 February, 2016

Superfluidity and superconductivity

Strong electron-phonon coupling in the intermetallic superconductor Mo8Ga41

Valeriy Yu. Verchenko, Alexander A. Tsirlin, Alexander O. Zubtsovskiy, and Andrei V. Shevelkov

Phys. Rev. B 93, 064501 (2016) - Published 1 February, 2016

Universal heat conduction in Ce1−xYbxCoIn5: Evidence for robust nodal d-wave superconducting gap

Y. Xu, J. K. Dong, I. K. Lum, J. Zhang, X. C. Hong, L. P. He, K. F. Wang, Y. C. Ma, C. Petrovic, M. B. Maple, L. Shu, and S. Y. Li

Phys. Rev. B 93, 064502 (2016) - Published 1 February, 2016

Nonmonotonic pressure evolution of the upper critical field in superconducting FeSe

Udhara S. Kaluarachchi, Valentin Taufour, Anna E. Böhmer, Makariy A. Tanatar, Sergey L. Bud'ko, Vladimir G. Kogan, Ruslan Prozorov, and Paul C. Canfield

Phys. Rev. B 93, 064503 (2016) - Published 1 February, 2016

High-resolution magnetic penetration depth and inhomogeneities in locally noncentrosymmetric SrPtAs

J. F. Landaeta, S. V. Taylor, I. Bonalde, C. Rojas, Y. Nishikubo, K. Kudo, and M. Nohara

Phys. Rev. B 93, 064504 (2016) - Published 2 February, 2016

Internal pressure in superconducting Cu-intercalated Bi2Se3

Amit Ribak, Khanan B. Chashka, Elias Lahoud, Muntaser Naamneh, Shahar Rinott, Yair Ein-Eli, Nicholas C. Plumb, Ming Shi, Emile Rienks, and Amit Kanigel

Phys. Rev. B 93, 064505 (2016) - Published 5 February, 2016

Relaxation of the resistive superconducting state in boron-doped diamond films

A. Kardakova, A. Shishkin, A. Semenov, G. N. Goltsman, S. Ryabchun, T. M. Klapwijk, J. Bousquet, D. Eon, B. Sacépé, Th. Klein, and E. Bustarret

Phys. Rev. B 93, 064506 (2016) - Published 8 February, 2016

Superconductivity at 9 K in Mo5PB2 with evidence for multiple gaps

Michael A. McGuire and David S. Parker

Phys. Rev. B 93, 064507 (2016) - Published 9 February, 2016

Transverse ac-driven and geometric ratchet effects for vortices in conformal crystal pinning arrays

C. Reichhardt and C. J. Olson Reichhardt

Phys. Rev. B 93, 064508 (2016) - Published 11 February, 2016

Formation mechanism of superconducting phase and its three-dimensional architecture in pseudo-single-crystal KxFe2−ySe2

Yong Liu, Qingfeng Xing, Warren E. Straszheim, Jeff Marshman, Pal Pedersen, Richard McLaughlin, and Thomas A. Lograsso

Phys. Rev. B 93, 064509 (2016) - Published 11 February, 2016

Interfacial effects revealed by ultrafast relaxation dynamics in BiFeO3/YBa2Cu3O7 bilayers

D. Springer, Saritha K. Nair, Mi He, C. L. Lu, S. A. Cheong, T. Wu, C. Panagopoulos, Elbert E. M. Chia, and Jian-Xin Zhu

Phys. Rev. B 93, 064510 (2016) - Published 12 February, 2016

Prediction of stable C7/12 and metastable C4/7 commensurate solid phases for He4 on graphite

Jeonghwan Ahn, Hoonkyung Lee, and Yongkyung Kwon

Phys. Rev. B 93, 064511 (2016) - Published 17 February, 2016

Compressibility as a probe of quantum phase transitions in topological superconductors

David Nozadze and Nandini Trivedi

Phys. Rev. B 93, 064512 (2016) - Published 17 February, 2016

Wiedemann-Franz law in the underdoped cuprate superconductor YBa2Cu3Oy

G. Grissonnanche, F. Laliberté, S. Dufour-Beauséjour, M. Matusiak, S. Badoux, F. F. Tafti, B. Michon, A. Riopel, O. Cyr-Choinière, J. C. Baglo, B. J. Ramshaw, R. Liang, D. A. Bonn, W. N. Hardy, S. Krämer, D. LeBoeuf, D. Graf, N. Doiron-Leyraud, and Louis Taillefer

Phys. Rev. B 93, 064513 (2016) - Published 22 February, 2016

The authors measured the electrical and thermal Hall conductivities of YBa2Cu3Oy in high magnetic fields to investigate the nature of the nonsuperconducting ground state in underdoped cuprates. They found that the Wiedemann-Franz law is obeyed in the T=0 limit as soon as the vortex solid melts at high field. This shows that there is no vortex liquid at T=0 and it imposes a clear constraint on the nature of excitations in the enigmatic pseudogap phase of cuprate superconductors.

Probing the pinning landscape in type-II superconductors via Campbell penetration depth

R. Willa, V. B. Geshkenbein, and G. Blatter

Phys. Rev. B 93, 064515 (2016) - Published 23 February, 2016

Higgs amplitude mode in massless Dirac fermion systems

Ming Lu, Haiwen Liu, Pei Wang, and X. C. Xie

Phys. Rev. B 93, 064516 (2016) - Published 25 February, 2016

Dual role of Fe dopants in enhancing stability and charge transfer in (Li0.8Fe0.2)OHFeSe superconductors

Wei Chen, Changgan Zeng, Efthimios Kaxiras, and Zhenyu Zhang

Phys. Rev. B 93, 064517 (2016) - Published 25 February, 2016

Observation of a subharmonic gap singularity in interlayer tunneling characteristics of Bi2Sr2CaCu2O8+δ

V. M. Krasnov

Phys. Rev. B 93, 064518 (2016) - Published 26 February, 2016

Tunneling interstitial impurity in iron-chalcogenide-based superconductors

Huaixiang Huang, Degang Zhang, Yi Gao, Wei Ren, and C. S. Ting

Phys. Rev. B 93, 064519 (2016) - Published 26 February, 2016

Elastic coupling and spin-driven nematicity in iron-based superconductors

U. Karahasanovic and J. Schmalian

Phys. Rev. B 93, 064520 (2016) - Published 26 February, 2016

Dynamic transition in Landau-Zener-Stückelberg interferometry of dissipative systems: The case of the flux qubit

Alejandro Ferrón, Daniel Domínguez, and María José Sánchez

Phys. Rev. B 93, 064521 (2016) - Published 29 February, 2016

Structure of vortex-bound states in spin-singlet chiral superconductors

Darrick Lee and Andreas P. Schnyder

Phys. Rev. B 93, 064522 (2016) - Published 29 February, 2016

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