Pressure effect and electron diffraction on the anomalous transition in ternary superconductor Bi2Rh3Se2

被引：10

作者：

Chen, C. Y. ^{[1
]}

Chan, C. L. ^{[1
]}

Mukherjee, S. ^{[1
]}

Chou, C. C. ^{[1
]}

Tseng, C. M. ^{[2
]}

Hsu, S. L. ^{[2
]}

Chu, M. -W. ^{[2
]}

Lin, J. -Y. ^{[3
]}

Yang, H. D. ^{[1
]}

机构：

[1] Natl Sun Yat Sen Univ, Dept Phys, Kaohsiung 804, Taiwan

[2] Natl Taiwan Univ, Ctr Condensed Matter Sci, Taipei 10617, Taiwan

[3] Natl Chiao Tung Univ, Inst Phys, Hsinchu 300, Taiwan

来源：

SOLID STATE COMMUNICATIONS | 2014年 / 177卷

关键词：

Bi2Rh3Se2 ternary compound; Structural phase-transformation; Effects of pressure; Transmission electron microscopy; CHARGE-DENSITY-WAVE; FERMI-SURFACE; ZRTE3; NBSE3;

D O I：

10.1016/j.ssc.2013.09.025

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The effect of external hydrostatic pressure up to 22.23 kbar on the temperature-dependent transport properties of the ternary compound Bi2Rh3Se2 is investigated. Interestingly, the resistive anomaly at T-s similar to 250 K, previously proposed as a charge-density-wave (CDW) transition, is shifted to higher temperature with increasing pressure, in distinct contrast to an established knowledge for CDW. Using temperature-dependent electron-diffraction characterizations, we have unraveled that this transition is, in effect, of a structural phase-transformation nature, experiencing the symmetry reduction from a high-symmetry C-centered monoclinic lattice to a low-symmetry primitive one below T. A more elaborately determined room-temperature C-centered lattice was also proposed. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：42 / 45

页数：4