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Colossal magnetoresistance in epitaxial La(1-x-y)NayMnO3 thin film

Singh, RN and Shivakumara, C and Vasanthacharya, NY and Hegde, MS and Sahana, M (1997) Colossal magnetoresistance in epitaxial La(1-x-y)NayMnO3 thin film. In: Applied Physics Letters, 70 (21). pp. 2909-2911.

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We have synthesized La0.83Na0.11MnO2.93 by heating La2O3 and MnCO3 in NaCl melt at 900 °C. The exact composition was arrived by analyzing each ion by an independent chemical method. The compound crystallized in a rhombohedral structure and showed an insulator-to-metal transition at 290 K. Epitaxial thin films were fabricated on LaAlO3 (100) using a pulsed laser deposition technique. The film also showed an insulator-to-metal transition at 290 K. Magnetoresistance [ΔR/R0 = (RH−R0)/R0] was −71% near the insulator-to-metal transition temperature of 290 K at 6 T magnetic field.

Item Type: Journal Article
Publication: Applied Physics Letters
Publisher: American Institute of Physics
Additional Information: Copyright of this article belongs to American Institute of Physics.
Department/Centre: Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Division of Physical & Mathematical Sciences > Physics
Date Deposited: 26 Dec 2011 06:59
Last Modified: 26 Dec 2011 06:59
URI: http://eprints.iisc.ac.in/id/eprint/42893

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