Singh, Ishwar ; Ahuja, A. K. ; Joshi, S. K. (1980) Role of hybridization in phase transition in the falicov-kimball model Solid State Communications, 34 (1). pp. 65-67. ISSN 0038-1098
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Official URL: http://linkinghub.elsevier.com/retrieve/pii/003810...
Related URL: http://dx.doi.org/10.1016/0038-1098(80)90631-6
Abstract
Extended Falicov-Kimball model has been considered for samarium-chalcogenides where, (a) f-f interactions are considered to be quite large, (b) periodicity of the system has been taken into account, (c) f-d interactions are considered within mean field approximation and (d) the unperturbed conduction bandwidth is taken to be non-zero. We observe both continuous as well as discontinuous transitions and hence conclude that "extended Falicov-Kimball model" is a suitable model which can describe both a first order transition and a suitable intermediate valence phase in Sm-chalcogenides.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 14546 |
| Deposited On: | 12 Nov 2010 14:05 |
| Last Modified: | 03 Jun 2011 11:12 |
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