Conductance anomalies of CoFeB/MgO/CoFeB magnetic tunnel junctions

URN to cite this document:: urn:nbn:de:bvb:355-epub-309876
DOI to cite this document:: 10.5283/epub.30987

Ringer, Sebastian ; Vieth, M. ; Bär, L. ; Rührig, M. ; Bayreuther, Günther

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Date of publication of this fulltext: 24 Nov 2014 06:52

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Abstract

The I−V characteristics of CoFeB/MgO/CoFeB magnetic tunnel junctions show pronounced nonlinearities which are relevant both for sensor applications and for the basic understanding of spin-dependent tunneling. To study the relation between the tunnel characteristics and the tunnel magnetoresistance (TMR) ratio, a series of CoFeB/MgO/CoFeB junctions was annealed with stepwise increasing annealing ...