Mukherjee, S ; Ranganathan, R ; Mandal, P (2000) Field cooled coercivity in La1−xSrxCoO3 Journal of Physics and Chemistry of Solids, 61 (9). pp. 1433-1438. ISSN 0022-3697
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Official URL: http://doi.org/10.1016/S0022-3697(00)00008-1
Related URL: http://dx.doi.org/10.1016/S0022-3697(00)00008-1
Abstract
We have measured the field cooled coercivity for different cooling fields at different temperatures in La1−xSrxCoO3 (for x=0.15, 0.3, 0.4). The field cooled coercivity varies linearly with the cooling field. The slope of these linear curves varies exponentially with temperature (∼exp−αT). The value of α decreases slowly with increasing x in the region 0.2<x≤0.5. It increases suddenly to 0.11 for x=0.15. We suggest that α can be related to the volume fraction of superparamagnetic clusters. A comparison has been made with the zero field cooled coercivity of amorphous Fe–Zr.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 122890 |
| Deposited On: | 25 Aug 2021 12:19 |
| Last Modified: | 25 Aug 2021 12:19 |
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