|Title:||Pressure effect and electron diffraction on the anomalous transition in ternary superconductor Bi2Rh3Se2|
|Authors:||Chen, C. Y.|
Chan, C. L.
Chou, C. C.
Tseng, C. M.
Hsu, S. L.
Chu, M. -W.
Lin, J. -Y.
Yang, H. D.
Institute of Physics
|Keywords:||Bi2Rh3Se2 ternary compound;Structural phase-transformation;Effects of pressure;Transmission electron microscopy|
|Abstract:||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.|
|Journal:||SOLID STATE COMMUNICATIONS|
|Appears in Collections:||Articles|
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