Godwal, B. K. ; Meenakshi, S. ; Modak, P. ; Rao, R. S. ; Sikka, S. K. ; Vijayakumar, V. ; Bussetto, E. ; Lausi, A. (2002) Evidence of a Lifshitz transition in the high-pressure behavior of the intermetallic compound AuIn2 Physical Review B, 65 (14). 14101_1-14101_4. ISSN 0163-1829
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Official URL: http://prb.aps.org/abstract/PRB/v65/i14/e140101
Related URL: http://dx.doi.org/10.1103/PhysRevB.65.140101
Abstract
Accurate equation of state of AuIn2 was obtained by x-ray diffraction measurements with ELETTRA synchrotron source to pressures over 20 GPa. Below 5 GPa, the P-V data when transformed to universal equation of state (UEOS), shows a deviation from linearity, confirming an electronic transition, consistent with the anomaly observed earlier in fusion and electrical data. The present high-resolution data also reaffirm a structural phase transition beyond 9 GPa. Full potential electronic band-structure calculations reveal a Lifshitz transition at the observed anomaly in the UEOS. Its transition pressure was found to be sensitive to the exchange-correlation terms.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Physical Society. |
| ID Code: | 11642 |
| Deposited On: | 13 Nov 2010 14:07 |
| Last Modified: | 02 Jun 2011 09:20 |
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