Srivastava, J. K. ; Ferreirinho, J. ; Ramakrishnan, S. ; Campbell, S. J. ; Chandra, G. ; Vijayaraghavan, R. (1991) Cluster phase transition in insulating spin glass Ga0.4Fe0.6NiAlO4 Hyperfine Interactions, 68 (1-4). pp. 279-282. ISSN 0304-3843
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Official URL: http://www.springerlink.com/content/m10356270q25g5...
Related URL: http://dx.doi.org/10.1007/BF02396490
Abstract
Mössbauer effect, a.c. susceptibility and magnetisation studies (4.2≦T≦350 K, −20≦H≦20 kOe) show that in the mixed spined ferrite Ga0.4Fe0.6NiAlO4, spin freezing occurs via cluster formation. As in some other insulating spin glasses, the spin glass phase diagram transitions occur not for individual spins but for clusters whose effective spins' transverse and longitudinal components successively freeze. The presence of entropic spins and the centre shift of the field cooled hysteresis loop confirm the system's frustrated nature.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Springer. |
| ID Code: | 40945 |
| Deposited On: | 25 May 2011 11:33 |
| Last Modified: | 25 May 2011 11:33 |
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