Hegde, MS and Sahana, M and Satyalakshmi, KM and Prasad, V and Subramanyam, SV (1996) Giant magnetoresistance in epitaxial lanthanum manganite thin films. In: Indian Journal of Pure & Applied Physics, 34 (9). pp. 674-680.
Full text not available from this repository. (Request a copy)Abstract
Magnetoresistance measurements on a variety of lanthanum manganite epitaxial films are reported here. While stoichiometric$La_{0.6}Pb_{0.4}MnO_3$ show 40% GMR at 300 K, an enhanced GMR up to 70% is observed in the case of oxygen deficient $La_{0.6}Pb_{0.4}MnO_{3-δ}$ (δ≈ 0.18) and $La_{0.6}Pb_{0.4}Mn_{1-x}Ti_xO_3$ (x≈0.03-0.07) thin films. Over 85% GMR is observed in the self-doped $La_{1-x}MnO_{3-δ}$ (x≈0.3, δ≈0.15) thin film. Magnetic/non-magnetic oxide multilayers of $(La_{0.6}Pb_{0.4}MnO_3)$30 $A/(La_{0.85}MnO_3)_{10} 30$ A show over 70% GMR at 280 K compared to only 38% GMR in $La_{0.6}Pb_{0.4}MnO_3$, single film at 280 K indicating that this system mimicks the GMR effect in $(Fe/Cr)_n$ metallic multilayers
| Item Type: | Journal Article |
|---|---|
| Publication: | Indian Journal of Pure & Applied Physics |
| Publisher: | Council of Scientific Industrial Reserach |
| Additional Information: | Copyright of this article belongs to Council of Scientific Industrial Reserach. |
| Keywords: | epitaxial layers;giant magnetoresistance;lanthanum compounds;lead compounds;magnetic multilayers;thin films |
| Department/Centre: | Division of Chemical Sciences > Solid State & Structural Chemistry Unit |
| Date Deposited: | 31 Aug 2007 |
| Last Modified: | 10 Jan 2012 06:54 |
| URI: | http://eprints.iisc.ac.in/id/eprint/10813 |
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