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RESEARCH PRODUCT
Quantum Phases and Spin Liquid Properties of 1T-TaS2
Eugenio CoronadoF. L. PrattTom LancasterSamuel Mañas‐valeroB. M. Huddartsubject
FOS: Physical sciences02 engineering and technologyQuantum phases01 natural sciencesCondensed Matter - Strongly Correlated ElectronsMesoscale and Nanoscale Physics (cond-mat.mes-hall)0103 physical sciencesTopological orderAtomic physics. Constitution and properties of matter010306 general physicsSpin (physics)MaterialsQuantumMaterials of engineering and construction. Mechanics of materialsPhysicsCondensed Matter - Materials ScienceStrongly Correlated Electrons (cond-mat.str-el)Condensed matter physicsCondensed Matter - Mesoscale and Nanoscale PhysicsQuàntums Teoria delsMaterials Science (cond-mat.mtrl-sci)Muon spin spectroscopy021001 nanoscience & nanotechnologyCondensed Matter PhysicsElectronic Optical and Magnetic MaterialsState of matterTA401-492Quantum spin liquid0210 nano-technologyCharge density waveQC170-197description
Quantum materials exhibiting magnetic frustration are connected to diverse phenomena including high-Tc superconductivity, topological order and quantum spin liquids (QSLs). A QSL is a quantum phase (QP) related to a quantum-entangled fluid-like state of matter. Previous experiments on QSL candidate materials are usually interpreted in terms of a single QP, although theories indicate that many distinct QPs are closely competing in typical frustrated spin models. Here we report on combined temperature-dependent muon spin relaxation and specific heat measurements for the triangular-lattice QSL candidate material 1T-TaS2 that provide evidence for competing QPs. The measured properties are assigned to arrays of individual QSL layers within the layered charge density wave structure of 1T-TaS2 and their characteristic parameters can be interpreted as those of distinct Z2 QSL phases. The present results reveal that a QSL description can extend beyond the lowest temperatures, offering a new perspective in the search for novel quantum materials.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2021-01-01 |