Almost pure Mott state of in the limit of reduced intersite hopping
A. Krajewska, T. Takayama, R. Dinnebier, A. Yaresko, K. Ishii, M. Isobe, and H. Takagi
Phys. Rev. B 101, 121101(R) (2020) - Published 2 March, 2020
The pyrochlore iridates IrO are expected to host novel electronic phases due to the interplay of spin-orbit coupling and correlation on a frustrated lattice. Their properties and orbital character are reported to vary as a function of the distortion of IrO octahedra, which is scaled by the cation radius. Here, the authors report a new pyrochlore iridate InIrO at the small cation and large distortion limit. By means of resonant inelastic x-ray scattering and band calculations they show that the orbital character of pyrochlore iridates largely depends on Ir-O-Ir intersite hopping rather than the local distortions. Furthermore, the In-O bond covalency in InIrO suppresses this intersite hopping, generating a nearly pure =½ state, in contrast to other pyrochlore iridates.
Phonon-induced renormalization of electron wave functions
Jae-Mo Lihm and Cheol-Hwan Park
Phys. Rev. B 101, 121102(R) (2020) - Published 2 March, 2020
van der Waals metamaterials
William Dorrell, Harris Pirie, S. Minhal Gardezi, Nathan C. Drucker, and Jennifer E. Hoffman
Phys. Rev. B 101, 121103(R) (2020) - Published 5 March, 2020
Misuse of the minimal coupling to the electromagnetic field in quantum many-body systems
Jan Skolimowski, Adriano Amaricci, and Michele Fabrizio
Phys. Rev. B 101, 121104(R) (2020) - Published 5 March, 2020
Strain-driven disproportionation at a correlated oxide metal-insulator transition
T. H. Kim, T. R. Paudel, R. J. Green, K. Song, H.-S. Lee, S.-Y. Choi, J. Irwin, B. Noesges, L. J. Brillson, M. S. Rzchowski, G. A. Sawatzky, E. Y. Tsymbal, and C. B. Eom
Phys. Rev. B 101, 121105(R) (2020) - Published 9 March, 2020
Universal spin dynamics in infinite-temperature one-dimensional quantum magnets
Maxime Dupont and Joel E. Moore
Phys. Rev. B 101, 121106(R) (2020) - Published 12 March, 2020
The spin dynamics of strongly interacting one-dimensional quantum magnets at high-temperature displays an emergent coarse-grained hydrodynamic behavior, understood as the result of conserved quantities. Different kinds of emergent hydrodynamics can be characterized by the dynamical exponent governing the length-time scaling . Relying on extensive numerical simulations, the authors extract the exponent for various microscopic quantum spin- models. They identify three universal regimes for the spin transport (superdiffusive with , ballistic with , and diffusive with ), which depend only on the isotropy and integrability of the system, but are independent of its microscopic details.
Quantum aspects of hydrodynamic transport from weak electron-impurity scattering
Aaron Hui, Samuel Lederer, Vadim Oganesyan, and Eun-Ah Kim
Phys. Rev. B 101, 121107(R) (2020) - Published 12 March, 2020
Scrambling in strongly chaotic weakly coupled bipartite systems: Universality beyond the Ehrenfest timescale
Ravi Prakash and Arul Lakshminarayan
Phys. Rev. B 101, 121108(R) (2020) - Published 13 March, 2020
Many-body approach to non-Hermitian physics in fermionic systems
Eunwoo Lee, Hyunjik Lee, and Bohm-Jung Yang
Phys. Rev. B 101, 121109(R) (2020) - Published 16 March, 2020
Electrically controlled dielectric band gap engineering in a two-dimensional semiconductor
Anders C. Riis-Jensen, Jiong Lu, and Kristian S. Thygesen
Phys. Rev. B 101, 121110(R) (2020) - Published 16 March, 2020
This work proposes and investigates a new physical concept of electrically controlled dielectric band gap engineering in a two-dimensional (2D) semiconductor. The authors show, using first-principles many-body calculations, that the band gap of a 2D semiconductor can be varied by several hundred meV’s by varying the doping concentration in a supporting graphene sheet as illustrated in the accompanying image. This provides a method for continuous and dynamical tuning of the band gap. Importantly, the band gap adjustment is achieved via nonlocal Coulomb interactions and does not involve changes in the atomic structure, or even the shape or hybridization pattern, of the wave functions of the 2D semiconductor.
Change in the optical spectrum of with applied uniaxial strain
T. Saiki, S. Ohkubo, K. Funahashi, T. Yamazaki, T. Kajita, and T. Katsufuji
Phys. Rev. B 101, 121111(R) (2020) - Published 17 March, 2020
Intrinsic orbital moment and prediction of a large orbital Hall effect in two-dimensional transition metal dichalcogenides
Sayantika Bhowal and S. Satpathy
Phys. Rev. B 101, 121112(R) (2020) - Published 18 March, 2020
Magnetic Weyl semimetals with diamond structure realized in spinel compounds
Wei Jiang, Huaqing Huang, Feng Liu, Jian-Ping Wang, and Tony Low
Phys. Rev. B 101, 121113(R) (2020) - Published 18 March, 2020
Genesis of the periodic lattice distortions in the charge density wave state of
Valeri Petkov, Kamal Chapagain, Sarvjit Shastri, and Yang Ren
Phys. Rev. B 101, 121114(R) (2020) - Published 19 March, 2020
Van Hove singularity arising from Mexican-hat-shaped inverted bands in the topological insulator Sn-doped
Wenchao Jiang, Bowen Li, Xiaomeng Wang, Guanyu Chen, Tong Chen, Ying Xiang, Wei Xie, Yaomin Dai, Xiyu Zhu, Huan Yang, Jian Sun, and Hai-Hu Wen
Phys. Rev. B 101, 121115(R) (2020) - Published 24 March, 2020
Defective edge states and number-anomalous bulk-boundary correspondence in non-Hermitian topological systems
Xiao-Ran Wang, Cui-Xian Guo, and Su-Peng Kou
Phys. Rev. B 101, 121116(R) (2020) - Published 27 March, 2020








