Large tunnel magnetoresistance in tunnel junctions with Co2MnSi/Co2FeSi multilayer electrode

Ebke D, Schmalhorst J-M, Liu N-N, Thomas A, Reiss G, Hütten A (2006)
APPLIED PHYSICS LETTERS 89(16): 162506.

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Zeitschriftenaufsatz | Veröffentlicht | Englisch
Abstract / Bemerkung
Two kinds of magnetic tunnel junctions with Co2FeSi electrodes are compared. Using Co2FeSi single layers a tunnel magnetoresistance of 52% is reached, whereas the magnetization of the Co2FeSi is only 75% of the expected value. By using [Co2MnSi/Co2FeSi](x10) multilayer electrodes the magnetoresistance can be increased to 114% and the full bulk magnetization is reached. All junctions show an inverse tunnel magnetoresistance, when the electrons are tunneling from the Co-Fe into the Heusler compound electrode. This results from a special band structure feature of full Heusler compounds, which is robust even for atomic disorder in the films.
Erscheinungsjahr
Zeitschriftentitel
APPLIED PHYSICS LETTERS
Band
89
Zeitschriftennummer
16
Artikelnummer
162506
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PUB-ID

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Ebke D, Schmalhorst J-M, Liu N-N, Thomas A, Reiss G, Hütten A. Large tunnel magnetoresistance in tunnel junctions with Co2MnSi/Co2FeSi multilayer electrode. APPLIED PHYSICS LETTERS. 2006;89(16): 162506.
Ebke, D., Schmalhorst, J. - M., Liu, N. - N., Thomas, A., Reiss, G., & Hütten, A. (2006). Large tunnel magnetoresistance in tunnel junctions with Co2MnSi/Co2FeSi multilayer electrode. APPLIED PHYSICS LETTERS, 89(16), 162506. doi:10.1063/1.2363939
Ebke, D., Schmalhorst, J. - M., Liu, N. - N., Thomas, A., Reiss, G., and Hütten, A. (2006). Large tunnel magnetoresistance in tunnel junctions with Co2MnSi/Co2FeSi multilayer electrode. APPLIED PHYSICS LETTERS 89:162506.
Ebke, D., et al., 2006. Large tunnel magnetoresistance in tunnel junctions with Co2MnSi/Co2FeSi multilayer electrode. APPLIED PHYSICS LETTERS, 89(16): 162506.
D. Ebke, et al., “Large tunnel magnetoresistance in tunnel junctions with Co2MnSi/Co2FeSi multilayer electrode”, APPLIED PHYSICS LETTERS, vol. 89, 2006, : 162506.
Ebke, D., Schmalhorst, J.-M., Liu, N.-N., Thomas, A., Reiss, G., Hütten, A.: Large tunnel magnetoresistance in tunnel junctions with Co2MnSi/Co2FeSi multilayer electrode. APPLIED PHYSICS LETTERS. 89, : 162506 (2006).
Ebke, Daniel, Schmalhorst, Jan-Michael, Liu, N. -N., Thomas, Andy, Reiss, Günter, and Hütten, Andreas. “Large tunnel magnetoresistance in tunnel junctions with Co2MnSi/Co2FeSi multilayer electrode”. APPLIED PHYSICS LETTERS 89.16 (2006): 162506.