Sankaran, H. ; Sharma, S. M. ; Sikka, S. K. (1992) The low-temperature phase of sodium: an intermediate orthorhombic distortion? Journal of Physics: Condensed Matter, 4 (4). L61- L66. ISSN 0953-8984
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Official URL: http://iopscience.iop.org/0953-8984/4/4/001
Related URL: http://dx.doi.org/10.1088/0953-8984/4/4/001
Abstract
The authors have shown through first-principles total-energy calculations on sodium that at low temperatures there is a nearly-zero barrier path of continuous orthorhombic deformations leading from the body-centred cubic (BCC) to the more stable hexagonal close-packed (HCP) structure. The observed diffraction patterns may now be explained without the aid of stacking faults that are needed to account for deviations from the calculated pattern if a 9R structure is assumed.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Institute of Physics. |
| ID Code: | 48190 |
| Deposited On: | 13 Jul 2011 14:22 |
| Last Modified: | 12 Jul 2012 07:50 |
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