Some experimental schemes to identify quantum spin liquids

Abstract

Despite the apparent ubiquity and variety of quantum spin liquids in theory, experimental confirmation of spin liquids remains to be a huge challenge. Motivated by the recent surge of evidences for spin liquids in a series of candidate materials, we highlight the experimental schemes, involving the thermal Hall transport and spectrum measurements, that can result in smoking-gun signatures of spin liquids beyond the usual ones. For clarity, we investigate the square lattice spin liquids and theoretically predict the possible phenomena that may emerge in the corresponding spin liquids candidates. The mechanisms for these signatures can be traced back to either the intrinsic characters of spin liquids or the external field-driven behaviors. Our conclusion does not depend on the geometry of lattices and can broadly apply to other relevant spin liquids.

7 pages, 4 figures

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Cited by in corpus (5)

• Topological chiral spin liquids and competing states in triangular lattice SU($N$) Mott insulators
• Synthesis, disorder and Ising anisotropy in a new spin liquid candidate PrMgAl${}_{11}$O${}_{19}$
• Dynamics of fractionalized mean-field theories: consequences for Kitaev materials
• Mott Gap Softening Coinciding with Spin Correlations Collapse in a-RuCl3
• Coincidence detection techniques for direct measurement of many-body correlations in strongly correlated electron systems