Monga, M. R. ; Sharma, K. C. ; Pathak, K. N. (1978) Mean-square displacement of an atom in an anharmonic crystal to O(λ4) Physical Review B: Condensed Matter and Materials Physics, 18 (10). pp. 5427-5432. ISSN 1098-0121
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Official URL: http://prb.aps.org/abstract/PRB/v18/i10/p5427_1
Related URL: http://dx.doi.org/10.1103/PhysRevB.18.5427
Abstract
General expressions for all anharmonic contributions of O(λ4) to the mean-square displacement of an atom in a crystal have been obtained. Numerical estimates have been made for a nearest-neighbor central-force model of a fcc lattice in the high-temperature limit and in the leading-term approximation. Our estimates for Lennard-Jones systems show that anharmonic contributions of O(λ4) cannot be ignored. Estimated recoilless fraction of 9.4-keV transition of 83Kr in solid krypton is found to be quite close to experimental values.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to The American Physical Society. |
| ID Code: | 55973 |
| Deposited On: | 22 Aug 2011 12:57 |
| Last Modified: | 22 Aug 2011 12:57 |
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