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arXiv 1706.08558cond-mat.str-elcond-mat.mtrl-scicond-mat.supr-con
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自旋液体候选物1 T- TaS2的热输运研究

Heat transport study of the spin liquid candidate 1T-TaS2

Y. J. Yu, Y. Xu, L. P. He, M. Kratochvilova, Y. Y. Huang, J. M. Ni, Lihai Wang, Sang-Wook Cheong, Je-Geun Park, S. Y. Li

摘要:

我们提出了超低温热导率的测量单晶的原型电荷密度波材料1 $T$ $_2$,这是最近被认为是一个候选人的量子自旋液体。实验表明,在实验精度范围内,零场热导率的剩余线性项基本为零。此外,热导率被发现是不敏感的磁场高达9 T。这些结果清楚地表明,在散装1 $T$ $_2$中不存在具有费米子统计的巡回磁激发,因此,对该材料的基态的理论提出了强有力的约束。

英文摘要:

We present the ultra-low-temperature thermal conductivity measurements on single crystals of the prototypical charge-density-wave material 1$T$-TaS$_2$, which was recently argued to be a candidate for quantum spin liquid. Our experiments show that the residual linear term of thermal conductivity at zero field is essentially zero, within the experimental accuracy. Furthermore, the thermal conductivity is found to be insensitive to the magnetic field up to 9 T. These results clearly demonstrate the absence of itinerant magnetic excitations with fermionic statistics in bulk 1$T$-TaS$_2$ and, thus, put a strong constraint on the theories of the ground state of this material.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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