Raychaudhuri, P. ; Taneja, P. ; Nigam, A. K. ; Ayyub, P. ; Pinto, R. ; Patade, A. (1999) Spin polarised tunnelling in granular polycrystalline colossal magnetoresistive manganites Physica B: Condensed Matter, 259-26 . pp. 812-813. ISSN 0921-4526
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Official URL: http://www.sciencedirect.com/science/article/pii/S...
Related URL: http://dx.doi.org/10.1016/S0921-4526(98)01134-X
Abstract
We have measured the resistance and magnetoresistance of several bulk polycrystalline colossal magnetoresistive materials and epitaxial thin films. In all the polycrystalline materials we observed a much larger magnetoresistance compared to single crystals and epitaxial thin films at temperatures below the ferromagnetic transition temperature. We also observed a field dependent increase in resistance at low temperatures in all the polycrystalline samples. The significance of these results with respect to spin polarised tunnelling is discussed.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | Colossal Magnetoresistance; Spin Polarised Tunnelling; Granular Material |
| ID Code: | 105146 |
| Deposited On: | 25 Dec 2017 11:49 |
| Last Modified: | 25 Dec 2017 11:49 |
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