Mishra, A. K. ; Poswal, H. K. ; Acharya, S. N. ; Tyagi, A. K. ; Sharma, S. M. (2010) Structural evolution of double perovskite Sr2MgWO6 under high pressure Physica Status Solidi B, 247 (7). pp. 1773-1777. ISSN 0370-1972
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Official URL: http://onlinelibrary.wiley.com/doi/10.1002/pssb.20...
Related URL: http://dx.doi.org/10.1002/pssb.201046030
Abstract
Angle dispersive X-ray diffraction and Raman scattering studies have been carried out on Sr2MgWO6 up to ~28 and ~40 GPa, respectively. This compound is found to be structurally stable up to the highest pressure in this study. Bulk modulus of ambient phase is determined to be 128± 3.9GPa which is in close agreement with the theoretical value of bulk modulus, 132 GPa, obtained using first principles calculations. Our first principles calculations also show that the initial tetragonal phase is more stable compared to the expected monoclinic structure up to at least 100 GPa.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to John Wiley and Sons. |
| Keywords: | Double Perovskites; High-pressure Effects; Raman Spectroscopy |
| ID Code: | 81875 |
| Deposited On: | 09 Feb 2012 04:49 |
| Last Modified: | 09 Feb 2012 04:49 |
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