標題: | Pressure effect and electron diffraction on the anomalous transition in ternary superconductor Bi2Rh3Se2 |
作者: | Chen, C. Y. Chan, C. L. Mukherjee, S. Chou, C. C. Tseng, C. M. Hsu, S. L. Chu, M. -W. Lin, J. -Y. Yang, H. D. 物理研究所 Institute of Physics |
關鍵字: | Bi2Rh3Se2 ternary compound;Structural phase-transformation;Effects of pressure;Transmission electron microscopy |
公開日期: | 1-一月-2014 |
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. |
URI: | http://dx.doi.org/10.1016/j.ssc.2013.09.025 http://hdl.handle.net/11536/23382 |
ISSN: | 0038-1098 |
DOI: | 10.1016/j.ssc.2013.09.025 |
期刊: | SOLID STATE COMMUNICATIONS |
Volume: | 177 |
Issue: | |
起始頁: | 42 |
結束頁: | 45 |
顯示於類別: | 期刊論文 |