Govindaraj, R. ; Sundar, C. S. (2006) Competing magnetic phases in La0.7Sr0.3MnO3 as deduced from Mn site hyperfine parameters Journal of Physics: Condensed Matter, 18 (32). pp. 7651-7658. ISSN 0953-8984
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Official URL: http://iopscience.iop.org/0953-8984/18/32/013
Related URL: http://dx.doi.org/10.1088/0953-8984/18/32/013
Abstract
Time differential perturbed angular correlation measurements using the 181Ta probe in La0.7Sr0.3Mn0.995Hf0.005O3 reveal the presence of two distinct hyperfine components, identified with probe atoms occupying Mn sites which are rich and deficient in hole concentration. The Mn4+ rich zones exhibit ferromagnetic ordering at all temperatures below 360 K, the bulk Curie temperature. In the case of Mn4+ deficient zones, the paramagnetic order is seen to evolve into a canted antiferromagnetic ordering below 360 K, that becomes ferromagnetic below 250 K. Concomitantly, there is a change in the fractions below 250 K. The implications of these results are discussed in terms of electronic phase separation.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Institute of Physics. |
| ID Code: | 53206 |
| Deposited On: | 05 Aug 2011 10:37 |
| Last Modified: | 05 Aug 2011 10:37 |
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