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Evidence of Low Field Magnetoimpedance Effect in (111) Oriented Fe3O4 Thin Films

Joshi, RS and Sankarshan, BM and Kant, Mohan K and Kumar, PS (2014) Evidence of Low Field Magnetoimpedance Effect in (111) Oriented Fe3O4 Thin Films. In: 58th DAE Solid State Physics Symposium, DEC 17-21, 2013, Thapar Univ, Patiala, INDIA, pp. 1601-1603.

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Official URL: http://dx.doi.org/ 10.1063/1.4873048


Thin film of Fe3O4 is grown on (100) oriented GaAs substrate using pulsed laser deposition (PLD). The films were found to be (111) oriented. They were characterized morphologically as well as magnetically. They show Verwey transition at 120 K with the coercivity of 220 Oe at room temperature. These films were found to show magnetoimpedance effect with the ac magnetoresistance (MRac) of the order of similar to -6% at 10 MHz, at room temperature. The MRac was found to increase in low field-low frequency regime and decrease in low field high frequency regime.

Item Type: Conference Proceedings
Series.: AIP Conference Proceedings
Additional Information: Copy right for this article belongs to the AMER INST PHYSICS, 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA.
Keywords: Electric impedance measurement; Film deposition; Magnetic films; Ferrimagnetic materials
Department/Centre: Division of Physical & Mathematical Sciences > Physics
Date Deposited: 08 Nov 2014 05:22
Last Modified: 08 Nov 2014 05:22
URI: http://eprints.iisc.ac.in/id/eprint/50188

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