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  4. Long-range order on the atomic scale induced at CoFeB/MgO interfaces
 
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2009
Journal Article
Title

Long-range order on the atomic scale induced at CoFeB/MgO interfaces

Abstract
The amorphous (a-) CoFeB/crystalline (c-) MgO based tunneling system interface has been studied by means of quantitative high resolution transmission electron microscopy from atomic to micrometer length scales with increasing annealing temperatures. On the micron scale an irregular nucleation is found. On the atomic scale a long-range order is induced by the MgO interface, explaining the high tunnel magnetoresistance values > 100% even for not fully crystallized CoFeB/MgO/CoFeB tunnel junctions.
Author(s)
Eilers, G.
Ulrichs, H.
Münzenberg, M.
Thomas, A.
Thiel, K.
Seibt, M.
Journal
Journal of applied physics  
DOI
10.1063/1.3100044
Language
English
Fraunhofer-Institut für Fertigungstechnik und Angewandte Materialforschung IFAM  
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