Speziale, S. ; Jeanloz, R. ; Clark, S. M. ; Meenakshi, S. ; Vijayakumar, V. ; Verma, A. K. ; Rao, R. S. ; Godwal, B. K. (2008) Axial ratio anomalies and electronic topological transitions in Cd0.80Hg0.20 at high pressures Journal of Physics and Chemistry of Solids, 69 (9). pp. 2325-2331. ISSN 0022-3697
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Official URL: http://linkinghub.elsevier.com/retrieve/pii/S00223...
Related URL: http://dx.doi.org/10.1016/j.jpcs.2008.04.028
Abstract
High-pressure angle-dispersive X-ray diffraction measurements show that Cd0.80Hg0.20 alloy remains in the hcp structure up to 50 GPa. We observe subtle anomalies in the pressure variation of the lattice parameters and their ratio, and in normalized stress versus strain. Electronic-structure calculations, as well as experimental and theoretical results for Cd, suggest that these anomalies are related to the occurrence of electronic topological transitions. Our results support Lifshitz's prediction that electronic phase transitions can cause anomalies in structural and elastic properties of materials.
Item Type: | Article |
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Source: | Copyright of this article belongs to Elsevier Science. |
Keywords: | A. Alloys; C. High Pressure; C. X-Ray Diffraction; D. Equation Of State; D. Electronic Structure |
ID Code: | 11711 |
Deposited On: | 13 Nov 2010 14:01 |
Last Modified: | 02 Jun 2011 08:37 |
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