Revealing quantum spin liquid in the herbertsmithite $\rm ZnCu_{3}(OH)_6Cl_{2}$

V. R. Shaginyan; M. Ya. Amusia; J. W. Clark; G. S. Japaridze; A. Z. Msezane; V. A. Stephanovich; Y. S. Leevik; E. V. Kirichenko

arXiv · 1806.11081

Revealing quantum spin liquid in the herbertsmithite $\rm ZnCu_{3}(OH)_6Cl_{2}$

V. R. Shaginyan·M. Ya. Amusia·J. W. Clark·G. S. Japaridze·A. Z. Msezane·V. A. Stephanovich·Y. S. Leevik·E. V. Kirichenko

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Abstract

Based on experimental data and our theoretical analysis, we provide a strategy for unambiguous establishing of gapless quantum spin liquid state (QSL) in herbertsmithite and other materials. To clarify the nature of QSL, we recommend measurements of heat transport, low-energy inelastic neutron scattering and optical conductivity under the application of external magnetic field at low temperatures. We also suggest that artificially introduced inhomogeneity into $\rm ZnCu_{3}(OH)_6Cl_2$ can stabilize QSL, and serves as a test elucidating the contribution coming from impurities. We predict the results of these measurements in the case of gapless QSL.

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V. R. Shaginyan, M. Ya. Amusia, J. W. Clark, G. S. Japaridze, A. Z. Msezane, V. A. Stephanovich, Y. S. Leevik, E. V. Kirichenko. 2018-06-28. Revealing quantum spin liquid in the herbertsmithite $\rm ZnCu_{3}(OH)_6Cl_{2}$. https://arxiv.org/abs/1806.11081

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