Ramakrishnan, T. V. (1974) Microscopic theory of fluctuations in itinerant electron systems - ferromagnetism Solid State Communications, 14 (6). pp. 449-452. 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(74)90965-X
Abstract
A many body theoretical method for calculating the effect of low energy fluctuations on the dynamic susceptibility Χ(q, ω +) is presented. For the case of ferromagnetism, the contribution of one internal spin fluctuation is obtained and is seen to be much larger than the temperature dependent part of the Stoner or RPA term. It leads to the observed Curie-Weiss law for Χ(0, 0) (e.g. in Ni where comparison with experiment is made).
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 40866 |
| Deposited On: | 25 May 2011 11:00 |
| Last Modified: | 25 May 2011 11:00 |
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