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    Asymmetric voltage behavior of the tunnel magnetoresistance in double barrier magnetic tunnel junctions

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    Type
    Conference Paper
    Authors
    Useinov, Arthur
    Gooneratne, Chinthaka Pasan
    Kosel, Jürgen cc
    KAUST Department
    Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
    Electrical Engineering Program
    Physical Science and Engineering (PSE) Division
    Sensing, Magnetism and Microsystems Lab
    Date
    2012-06
    Permanent link to this record
    http://hdl.handle.net/10754/564558
    
    Metadata
    Show full item record
    Abstract
    In this paper, we study the value of the tunnel magnetoresistance (TMR) as a function of the applied voltage in double barrier magnetic tunnel junctions (DMTJs) with the left and right ferromagnetic (FM) layers being pinned and numerically estimate the possible difference of the TMR curves for negative and positive voltages in the homojunctions (equal barriers and electrodes). DMTJs are modeled as two single barrier junctions connected in series with consecutive tunneling (CST). We investigated the asymmetric voltage behavior of the TMR for the CST in the range of a general theoretical model. Significant asymmetries of the experimental curves, which arise due to different annealing regimes, are mostly explained by different heights of the tunnel barriers and asymmetries of spin polarizations in magnetic layers. © (2012) Trans Tech Publications.
    Citation
    Useinov, A., Gooneratne, C., & Kosel, J. (2012). Asymmetric Voltage Behavior of the Tunnel Magnetoresistance in Double Barrier Magnetic Tunnel Junctions. Solid State Phenomena, 190, 145–148. doi:10.4028/www.scientific.net/ssp.190.145
    Publisher
    Trans Tech Publications, Ltd.
    Journal
    Solid State Phenomena
    Conference/Event name
    5th Moscow International Symposium on Magnetism, MISM 2011
    ISBN
    9783037854365
    DOI
    10.4028/www.scientific.net/SSP.190.145
    ae974a485f413a2113503eed53cd6c53
    10.4028/www.scientific.net/SSP.190.145
    Scopus Count
    Collections
    Conference Papers; Physical Science and Engineering (PSE) Division; Electrical and Computer Engineering Program; Sensing, Magnetism and Microsystems Lab; Computer, Electrical and Mathematical Science and Engineering (CEMSE) Division

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