Please use this identifier to cite or link to this item: https://doi.org/10.1109/TMAG.2002.803202
Title: Tunneling magnetotransport in nanogranular-in-gap structure
Authors: Jalil, M.B.A. 
Keywords: Coulomb blockade
Monte Carlo modeling
Nanogranular array
Tunneling magnetoresistance
Issue Date: Sep-2002
Citation: Jalil, M.B.A. (2002-09). Tunneling magnetotransport in nanogranular-in-gap structure. IEEE Transactions on Magnetics 38 (5 I) : 2613-2615. ScholarBank@NUS Repository. https://doi.org/10.1109/TMAG.2002.803202
Abstract: Monte Carlo modeling was performed to investigate the combined effect of Coulomb blockade and spin-dependent tunneling on charge transport in a granular-in-gap structure, consisting of superparamagnetic Co grains embedded in an insulating matrix between contact electrodes. The tunneling magnetoresistance (TMR) response shows distinct temperature and field dependence, for different types of contacts - nonmagnetic, soft or hard ferromagnetic. These results contrast sharply with predictions by Inoue and Maekawa (1996) based on an infinite granular array, and can be explained by the role of the contacts in the initial rate-determining step.
Source Title: IEEE Transactions on Magnetics
URI: http://scholarbank.nus.edu.sg/handle/10635/72096
ISSN: 00189464
DOI: 10.1109/TMAG.2002.803202
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