Barma, M. ; Kumar, D. ; Pandey, R. B. (1980) Renormalization group calculations for the dilute Heisenberg model Journal of Magnetism and Magnetic Materials, 15-18 (1). pp. 245-246. ISSN 0304-8853
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Official URL: http://www.sciencedirect.com/science/article/pii/0...
Related URL: http://dx.doi.org/10.1016/0304-8853(80)91035-5
Abstract
A position space renormalization group calculation based on the Migdal approximation is presented for a randomly diluted Heisenberg magnet. We find a crossover from percolative to thermal critical behaviour at low temperatures, and calculate the associated crossover exponent. The complete critical curve is also calculated using an approximate recursion formula derived for a system of S=½ spins.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 69522 |
| Deposited On: | 24 Nov 2011 03:47 |
| Last Modified: | 12 Jul 2012 04:55 |
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