Thermal Conductivity of the Quantum Spin Liquid Candidate EtMe_{3}Sb[Pd(dmit)_{2}]_{2}: No Evidence of Mobile Gapless Excitations

The thermal conductivity κ of the quasi-2D organic spin-liquid candidate EtMe_{3}Sb[Pd(dmit)_{2}]_{2} (dmit-131) was measured at low temperatures, down to 0.07 K. We observe a vanishingly small residual linear term κ_{0}/T, in κ/T vs T as T→0. This shows that the low-energy excitations responsible f...

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Bibliographic Details
Main Authors: P. Bourgeois-Hope, F. Laliberté, E. Lefrançois, G. Grissonnanche, S. René de Cotret, R. Gordon, S. Kitou, H. Sawa, H. Cui, R. Kato, L. Taillefer, N. Doiron-Leyraud
Format: Article
Language:English
Published: American Physical Society 2019-12-01
Series:Physical Review X
Online Access:http://doi.org/10.1103/PhysRevX.9.041051