scholarly journals A Discrepancy in Thermal Conductivity Measurement Data of Quantum Spin Liquid β′-EtMe3Sb[Pd(dmit)2]2 (dmit = 1,3-Dithiol-2-thione-4,5-dithiolate)

Crystals ◽  
2022 ◽  
Vol 12 (1) ◽  
pp. 102
Author(s):  
Reizo Kato ◽  
Masashi Uebe ◽  
Shigeki Fujiyama ◽  
Hengbo Cui

A molecular Mott insulator β′-EtMe3Sb[Pd(dmit)2]2 is a quantum spin liquid candidate. In 2010, it was reported that thermal conductivity of β′-EtMe3Sb[Pd(dmit)2]2 is characterized by its large value and gapless behavior (a finite temperature-linear term). In 2019, however, two other research groups reported opposite data (much smaller value and a vanishingly small temperature-linear term) and the discrepancy in the thermal conductivity measurement data emerges as a serious problem concerning the ground state of the quantum spin liquid. Recently, the cooling rate was proposed to be an origin of the discrepancy. We examined effects of the cooling rate on electrical resistivity, low-temperature crystal structure, and 13C-NMR measurements and could not find any significant cooling rate dependence.

2019 ◽  
Vol 123 (24) ◽  
Author(s):  
J. M. Ni ◽  
B. L. Pan ◽  
B. Q. Song ◽  
Y. Y. Huang ◽  
J. Y. Zeng ◽  
...  

2016 ◽  
Vol 117 (26) ◽  
Author(s):  
Y. Xu ◽  
J. Zhang ◽  
Y. S. Li ◽  
Y. J. Yu ◽  
X. C. Hong ◽  
...  

2019 ◽  
Vol 9 (4) ◽  
Author(s):  
P. Bourgeois-Hope ◽  
F. Laliberté ◽  
E. Lefrançois ◽  
G. Grissonnanche ◽  
S. René de Cotret ◽  
...  

2018 ◽  
Vol 135 (5) ◽  
pp. 2831-2836 ◽  
Author(s):  
Tetsuya Nomoto ◽  
Shusaku Imajo ◽  
Satoshi Yamashita ◽  
Hiroki Akutsu ◽  
Yasuhiro Nakazawa ◽  
...  

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Oliver Hart ◽  
Yuan Wan ◽  
Claudio Castelnovo

AbstractRealistic model Hamiltonians for quantum spin liquids frequently exhibit a large separation of energy scales between their elementary excitations. At intermediate, experimentally relevant temperatures, some excitations are sparse and hop coherently, whereas others are thermally incoherent and dense. Here, we study the interplay of two such species of quasiparticle, dubbed spinons and visons, which are subject to nontrivial mutual statistics – one of the hallmarks of quantum spin liquid behaviour. Our results for $${{\mathbb{Z}}}_{2}$$ Z 2 quantum spin liquids show an intriguing feedback mechanism, akin to the Nagaoka effect, whereby spinons become localised on temperature-dependent patches of expelled visons. This phenomenon has important consequences for the thermodynamic and transport properties of the system, as well as for its response to quenches in temperature. We argue that these effects can be measured in experiments and may provide viable avenues for obtaining signatures of quantum spin liquid behaviour.


2020 ◽  
Vol 125 (26) ◽  
Author(s):  
S. Kundu ◽  
Aga Shahee ◽  
Atasi Chakraborty ◽  
K. M. Ranjith ◽  
B. Koo ◽  
...  

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