Search results for "Non-Fermi-liquid states"

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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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