Ultra spin liquid in $\mathrm{L}{\mathrm{u}}_3\mathrm{C}{\mathrm{u}}_2\mathrm{S}{\mathrm{b}}_3{\mathrm{O}}_{14}$

Abstract

We analyze measurements of $C_{\mathrm{mag}}/T$, specific heat $C_{\mathrm{mag}}$ divided by temperature $T$, of the recently observed ultra spin liquid. The measurements are carried out in magnetic fields on the triangular lattice compound $\mathrm{L}{\mathrm{u}}_3\mathrm{C}{\mathrm{u}}_2\mathrm{S}{\mathrm{b}}_3{\mathrm{O}}_{14}$. We show that the obtained heat capacity $C_{\mathrm{mag}}/T$ formed by ultra spin liquid as a function of temperature $T$ versus magnetic field $B$ behaves very similar to the electronic specific heat $C_{el}/T$ of the heavy fermion (HF) metal $\mathrm{YbR}{\mathrm{h}}_2\mathrm{S}{\mathrm{i}}_2$ and that of the quantum magnet $\mathrm{ZnC}{\mathrm{u}}_3(\mathrm{OH}{)}_6\mathrm{C}{\mathrm{l}}_2$. We further demonstrate that the spinon effective mass $M^{\ast }\propto C_{\mathrm{mag}}/T$ exhibits the universal scaling coinciding with that observed in HF metals and in $\mathrm{ZnC}{\mathrm{u}}_3(\mathrm{OH}{)}_6\mathrm{C}{\mathrm{l}}_2$. Based on these observations we conclude that a strongly correlated spin liquid determines the thermodynamic properties of the ultra spin liquid of $\mathrm{L}{\mathrm{u}}_3\mathrm{C}{\mathrm{u}}_2\mathrm{S}{\mathrm{b}}_3{\mathrm{O}}_{14}$.

arXiv comment6 pages, 5 figures

References in corpus (24)

• Anyons in an exactly solved model and beyond
• Quantum Spin Liquids
• Spin Liquid Ground State of the $S=1/2$ Kagome Heisenberg Model
• Fractionalized excitations in the spin liquid state of a kagomé lattice antiferromagnet
• Majorana quantization and half-integer thermal quantum Hall effect in a Kitaev spin liquid
• Flat bands in topological media
• Isolated Flat Bands and Spin-1 Conical Bands in Two-Dimensional Lattices
• Dynamic Scaling in the Susceptibility of the Spin-1\2 Kagome Lattice Antiferromagnet Herbertsmithite
• Scaling Behavior of Heavy Fermion Metals
• Topology of the Fermi Surface Beyond the Quantum Critical Point
• Strange metal without magnetic criticality
• Coexisting localized and itinerant gapless excitations in a quantum spin liquid candidate 1T-TaS${}_2$
• Anomalous Behavior of Thermodynamic Properties of Strongly Correlated Fermi Systems
• Thermodynamic Properties of Kagome Lattice in ZnCu_3(OH)_6Cl_2 Herbertsmithite
• Universal Behavior of Two-Dimensional 3He at Low Temperatures
• Presence and absence of itinerant gapless excitations in the quantum spin liquid candidate EtMe${}_3$Sb[Pd(dmit)${}_2$]${}_2$
• Identification of Strongly Correlated Spin Liquid in Herbertsmithite
• High magnetic fields thermodynamics of heavy fermion metal YbRh2Si2
• General properties of phase diagrams of heavy-fermion metals
• Topological basis for understanding the behavior of the heavy-fermion metal $\beta -\mathrm{YbAl}{\mathrm{B}}_4$ under application of magnetic field and pressure
• Topological disorder triggered by interaction-induced flattening of electron spectra in solids
• Heat transport in magnetic fields by quantum spin liquid in the organic insulators EtMe3Sb[Pd(dmit)2]2 and κ-(BEDT-TTF)2Cu2(CN)3
• Universal $T/B$ scaling behavior of heavy fermion compounds
• Intrinsic new properties of a quantum spin liquid