Suppression of charge-density-wave order in TiSe 2 studied with high-pressure magnetoresistance
Suppression of charge-density-wave order in TiSe 2 studied with high-pressure magnetoresistance
复制标题
用高压磁阻研究 TiSe 2 中电荷密度波序的抑制
DOI：
10.1088/2516-1075/ac858c
复制
发表时间：
2022
影响因子：
2.6
通讯作者：
Moulding O
中科院分区：
文献类型：
--
作者：
Moulding O
TiSe 2 经历电荷密度波(CDW)有序，其可以在压力下被抑制。我们使用高分辨率电阻率和磁阻测量来追踪 CDW 至迄今为止任何输运研究中的最高压力。与之前的工作相比表明，CDW 对压力条件非常敏感，导致在非静水力存在的情况下临界压力降低。我们的分析表明，在完美压力条件下，固有临界压力可能高达 5.6 GPa。与此同时，我们观察到与临界压力 P CDW 相关的增强散射特征。 P CDW 对非静水力的敏感性以及与其相关的增强散射提出了这样的问题：压力下 TiSe 2 中诱导的超导性如何与 CDW 阶数相关。
TiSe 2 undergoes charge density wave (CDW) order which can be suppressed under pressure. We use high-resolution electrical resistivity and magnetoresistance measurements to trace the CDW to the highest pressures of any transport study so far. Comparison with previous work shows that the CDW is very sensitive to pressure conditions resulting in a reduced critical pressure in the presence of non-hydrostaticity. Our analysis indicates that in perfect pressure conditions the intrinsic critical pressure might be as high as 5.6 GPa. At the same time, we observe signatures of enhanced scattering linked to the critical pressure, P CDW. The sensitivity of P CDW to non-hydrostaticity and the enhanced scattering linked to it raises questions of how the superconductivity induced in TiSe 2 under pressure is related to the CDW order.