Multiple charge density waves compete in ternary rare-earth nickel carbides, RNiC2 (R: Y, Dy, Ho, and Er)
Multiple charge density waves compete in ternary rare-earth nickel carbides, RNiC2 (R: Y, Dy, Ho, and Er)
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多种电荷密度波在三元稀土碳化镍 RNiC2（R：Y、Dy、Ho 和 Er）中竞争
DOI：
10.1103/physrevb.100.104107
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发表时间：
2019
影响因子：
3.7
通讯作者：
Nogami Yoshio
中科院分区：
文献类型：
--
作者：
Maeda Hiroyuki;Kondo Ryusuke;Nogami Yoshio
对式为[稀土()：Y，Dy，Ho和Er]的金属间化合物进行了单晶X射线衍射实验和电阻率测量。在一系列的绕射研究中，我们发现了三种不同的卫星反射，它们具有不同的波矢[不相称和相称，以及在其电阻率显示异常的温度下，如驼峰、急剧增加或凹陷。据报道，具有几乎相同波矢的卫星反射也是由较早的稀土原子(和)组成的。这些结果表明，电荷密度波(CDW)的形成也在本文中进行了研究。我们发现在AND和CDW之间存在着激烈的竞争，并且只有CDW存在于AND中。基于本文的结果和前人的结果，我们讨论了该族中的CDW跃迁。
Single-crystal x-ray-diffraction experiments and electrical resistivity measurements were performed on intermetallic compounds of formula[rare earth (): Y, Dy, Ho, and Er]. In the series of diffraction studies, we found three kinds of satellite reflections that had different wave vectors [incommensurateand commensurateandat temperatures where their resistivities show anomalies, such as a hump, a sharp increase, or a dent. Satellite reflections with nearly identical wave vectors have also been reported incomposed of earlier lanthanide atoms (and). These results indicate the formation of a charge density wave (CDW) also instudied in this paper. We found strong competition between theand theCDWs inand, and that only theCDW existed inand. Based on the results obtained in the present paper and those of, andreported before, we discuss the CDW transitions in thefamily.