Search results for "quantum spin liquids"

showing 3 items of 3 documents

Thermodynamic, dynamic and transport properties of quantum spin liquid in herbertsmithite from experimental and theoretical point of view

2019

In our review we focus on the quantum spin liquid, defining the thermodynamic, transport and relaxation properties of geometrically frustrated magnets (insulators) represented by herbertsmithite $\rm ZnCu_{3}(OH)_6Cl_2$.

Quantum phase transitionGeometrical frustrationFOS: Physical sciences02 engineering and technologyengineering.material01 natural sciencesCondensed Matter - Strongly Correlated ElectronsQuantum state0103 physical sciences010306 general physicsQuantum computerPhysicsQuantum PhysicsCondensed matter physicsStrongly Correlated Electrons (cond-mat.str-el)quantum spin liquidsherbertsmithitetopological quantum phase transitions021001 nanoscience & nanotechnologyCondensed Matter Physicslcsh:QC1-999Electronic Optical and Magnetic Materialsflat bandsengineeringQuasiparticleState of matterHerbertsmithiteCondensed Matter::Strongly Correlated ElectronsQuantum spin liquidfermion condensation0210 nano-technologyQuantum Physics (quant-ph)lcsh:Physics
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New state of matter: heavy-fermion systems, quantum spin liquids, quasicrystals, cold gases, and high temperature superconductors

2018

We report on a new state of matter manifested by strongly correlated Fermi systems including various heavy-fermion (HF) metals, two-dimensional quantum liquids such as $\rm ^3He$ films, certain quasicrystals, and systems behaving as quantum spin liquids. Generically, these systems can be viewed as HF systems or HF compounds, in that they exhibit typical behavior of HF metals. At zero temperature, such systems can experience a so-called fermion-condensation quantum phase transition (FCQPT). Combining analytical considerations with arguments based entirely on experimental grounds we argue and demonstrate that the class of HF systems is characterized by universal scaling behavior of their ther…

Quantum phase transitionHigh-temperature superconductivityNon-Fermi liquid statesFOS: Physical sciencesQuantum phase transition01 natural sciencesNew state of matter010305 fluids & plasmaslaw.inventionQuantum spin liquidsSuperconductivity (cond-mat.supr-con)Condensed Matter - Strongly Correlated Electronslaw0103 physical sciencesGeneral Materials Science010306 general physicsQuantumSuperconductivityPhysicsFlat bandsCondensed matter physicsStrongly Correlated Electrons (cond-mat.str-el)Condensed Matter - SuperconductivityFermi surfaceStrongly correlated electron systemsFermionCondensed Matter PhysicsAtomic and Molecular Physics and OpticsHeavy fermionsHigh-Tc superconductivityCold gasesState of matterStrongly correlated materialQuasicrystals
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Universal Behavior of Quantum Spin Liquid and Optical Conductivity in the Insulator Herbertsmithite

2018

We analyze optical conductivity with the goal to demonstrate experimental manifestation of a new state of matter, the so-called fermion condensate. Fermion condensates are realized in quantum spin liquids, exhibiting typical behavior of heavy fermion metals. Measurements of the low-frequency optical conductivity collected on the geometrically frustrated insulator herbertsmithite provide important experimental evidence of the nature of its quantum spin liquid composed of spinons. To analyze recent measurements of the herbertsmithite optical conductivity at different temperatures, we employ a model of strongly correlated quantum spin liquid located near the fermion condensation phase transiti…

Quantum phase transitionPhase transitionFOS: Physical sciencesOptical conductivityQuantum phase transitionengineering.material01 natural sciencesOptical conductivity010305 fluids & plasmasQuantum spin liquidsCondensed Matter - Strongly Correlated ElectronsNon-Fermi-liquid states0103 physical sciencesGeneral Materials ScienceStrongly correlated Fermi systems010306 general physicsPhysicsCondensed Matter::Quantum GasesFlat bandsStrongly Correlated Electrons (cond-mat.str-el)Condensed matter physicsFermionCondensed Matter PhysicsAtomic and Molecular Physics and OpticsSpinonengineeringState of matterHerbertsmithiteCondensed Matter::Strongly Correlated ElectronsQuantum spin liquidJournal of Low Temperature Physics
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