Spin-dependent tunneling spectroscopy in MgO-based double-barrier magnetic tunnel junctions
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2012Author:
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Yu, GQ, Kurt, H, Feng, JF, Xu, K, Coey, JMD, Han, XF, Spin-dependent tunneling spectroscopy in MgO-based double-barrier magnetic tunnel junctions, Journal of Applied Physics, 111, 7, 2012, 07C712-Download Item:
Abstract:
We investigated the dynamic conductance and inelastic electron tunneling spectroscopy in
MgO-based double barrier magnetic tunnel junctions with Co
50
Fe
50
/Co
40
Fe
40
B
20
hybrid free
layers. The tunneling is coherent through the MgO (001) barriers but nonresonant, and the highest
tunneling magnetoresistance reaches 260% at 2K. Based on the detailed discussion of the
tunneling mechanisms, the double-barrier junctions investigated here can be considered as two
single-barrier junctions in series
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http://people.tcd.ie/jcoeyDescription:
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Author: COEY, JOHN MICHAEL DAVID
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Journal of Applied Physics;111;
7;
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