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  • Letter

Coupled frustrated ferromagnetic and antiferromagnetic quantum spin chains in the quasi-one-dimensional mineral antlerite Cu3SO4(OH)4

Anton A. Kulbakov1, Denys Y. Kononenko2, Satoshi Nishimoto2,3, Quirin Stahl1, Aswathi Mannathanath Chakkingal1, Manuel Feig4, Roman Gumeniuk4, Yurii Skourski5, Lakshmi Bhaskaran5 et al.

Sergei A. Zvyagin5, Jan Peter Embs6, Inés Puente-Orench7,8, Andrew Wildes8, Jochen Geck1,9, Oleg Janson2,*, Dmytro S. Inosov1,9,†, and Darren C. Peets1,‡

  • 1Institut für Festkörper- und Materialphysik, Technische Universität Dresden, 01069 Dresden, Germany
  • 2Leibniz Institute for Solid State and Materials Research Dresden, 01069 Dresden, Germany
  • 3Institut für Theoretische Physik, Technische Universität Dresden, 01069 Dresden, Germany
  • 4Institut für Experimentelle Physik, TU Bergakademie Freiberg, 09596 Freiberg, Germany
  • 5Dresden High Magnetic Field Laboratory (HLD-EMFL), Helmholtz-Zentrum Dresden-Rossendorf, 01328 Dresden, Germany
  • 6Laboratory for Neutron Scattering and Imaging, Paul Scherrer Institut, 5232 Villigen, Switzerland
  • 7Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain
  • 8Institut Laue-Langevin, 71 Avenue des Martyrs, CS 20156, CEDEX 9, 38042 Grenoble, France
  • 9Würzburg-Dresden Cluster of Excellence on Complexity and Topology in Quantum Matter–ct.qmat, Technische Universität Dresden, 01069 Dresden, Germany

  • *o.janson@ifw-dresden.de
  • †dmytro.inosov@tu-dresden.de
  • ‡darren.peets@tu-dresden.de
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Phys. Rev. B 106, L020405 – Published 28 July, 2022

DOI: https://doi.org/10.1103/PhysRevB.106.L020405

Abstract

Magnetic frustration, the competition among exchange interactions, often leads to novel magnetic ground states with unique physical properties which can hinge on details of interactions that are otherwise difficult to observe. Such states are particularly interesting when it is possible to tune the balance among the interactions to access multiple types of magnetic order. We present antlerite Cu3SO4(OH)4 as a potential platform for tuning frustration. Contrary to previous reports, the low-temperature magnetic state of its three-leg zigzag ladders is a quasi-one-dimensional analog of the magnetic state recently proposed to exhibit spinon-magnon mixing in botallackite. Density functional theory calculations indicate that antlerite's magnetic ground state is exquisitely sensitive to fine details of the atomic positions, with each chain independently on the cusp of a phase transition, indicating an excellent potential for tunability.

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Phys. Rev. B 106, L020405– Published 28 July, 2022
  • Received 28 March 2022
  • Revised 6 July 2022
  • Accepted 11 July 2022
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