Mandal, P. ; Choudhury, P. ; Bärner, K. ; von Helmolt, R. ; Jansen, A. G. M. (2002) Magnetotransport properties of La2/3Sr1/3MnO3 thin film Journal of Applied Physics, 91 (9). pp. 5940-5944. ISSN 0021-8979
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Official URL: http://doi.org/10.1063/1.1467956
Related URL: http://dx.doi.org/10.1063/1.1467956
Abstract
We report the temperature and magnetic field dependence of the resistivity of La2/3Sr1/3MnO3 thin film over a wide temperature range and in high magnetic fields up to 20 T. Both above and below the ferromagnetic (FM) transition, the field dependence of the magnetoresistance (MR) can be described well using the extended Mott hopping conduction model. The large MR is proportional to the Brillouin function BJ in the FM phase and to B2J in the paramagnetic state which is consistent with this model. The value of spin moment J deduced from the temperature and magnetic field dependence of the MR is large (∼60) in the vicinity of the FM transition. This large value of J has been attributed to the presence of magnetic clusters due to the short-range FM ordering.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Institute of Physics. |
| ID Code: | 122878 |
| Deposited On: | 25 Aug 2021 08:11 |
| Last Modified: | 25 Aug 2021 08:11 |
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