Mahesh, R. ; Mahendiran, R. ; Raychaudhuri, A. K. ; Rao, C. N. R. (1995) Giant magnetoresistance in bulk samples of La1−xAxMnO3 (A=Sr or Ca) Journal of Solid State Chemistry, 114 (1). pp. 297-299. ISSN 0022-4596
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Official URL: http://www.sciencedirect.com/science/article/pii/S...
Related URL: http://dx.doi.org/10.1006/jssc.1995.1045
Abstract
Magnetoresistance measurements have been carried out on bulk samples of several members of the La1−xAxMnO3 family (A=Sr and Ca) with varying x or Mn4+ content. The magnitude of magnetoresistance (MR) is highest at the insulator-metal (I-M) transition when the transition temperature is relatively low (≤250 K). The relative MR (%MR) is essentially the same (40-50%) at 4.2 K for all the compositions showing the I-M transition, namely ~15% at T≥300 K. Insulating compositions (small or large x) show smaller %MR than the compositions that undergo the I-M transition.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 42457 |
| Deposited On: | 02 Jun 2011 14:24 |
| Last Modified: | 05 Jul 2012 03:54 |
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