Recent progress on magnetic-field studies on quantum-spin-liquid candidates

Abstract

Quantum spin liquids (QSLs) represent a novel state of matter in which quantum fluctuations prevent conventional magnetic order from being established, and the spins remain disordered even at zero temperature. There have been many theoretical developments proposing various QSL states. On the other hand, experimental movement was relatively slow largely due to limitations on the candidate materials and difficulties in the measurements. In recent years, the experimental progress has been accelerated. In this topical review, we give a brief summary of experiments on the QSL candidates under magnetic fields. We arrange our discussions by two categories: i) Geometrically-frustrated systems, including triangular-lattice compounds YbMgGaO4 and YbZnGaO4, kappa-(BEDT-TTF)2Cu2(CN)3, and EtMe3Sb[Pd(dmit)2]2, and kagome system ZnCu3(OH)6Cl2; ii) the Kitaev material alpha-RuCl3. Among these, we will pay special attention to alpha-RuCl3, which has been intensively studied by our and other groups recently. We will present evidence that both supports and unsupports the QSL ground state for these materials, based on which we give several perspectives to stimulate further research activities.

arXiv commentTopical Review for "Fundamental Research under High Magnetic Fields"

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Cited by in corpus (13)

• Experimental identification of quantum spin liquids
• Weak-field induced nonmagnetic state in a Co-based honeycomb
• Thermal Transport for Probing Quantum Materials
• Continuous spin excitations in the three-dimensional frustrated magnet K2Ni2(SO4)3
• Magnetic Topological Semimetal Phase with Electronic Correlation Enhancement in SmSbTe
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• Constraining the Parameter Space of a Quantum Spin Liquid Candidate in Applied Field with Iterative Optimization
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• Magnetically disordered ground state in the triangular-lattice antiferromagnets Rb${}_3$Yb(VO${}_4$)${}_2$ and Cs${}_3$Yb(VO${}_4$)${}_2$
• A primer on Kitaev Model: Basic aspects, material realization, and recent experiments
• Incommensurate-commensurate magnetic phase transition in the double tungstate Li2Co(WO4)2