The role of Mg interface layer in MgO magnetic tunnel junctions with CoFe and CoFeB electrodes

The tunneling spin polarization (TSP) is directly measured from reactively sputter deposited crystalline MgO tunnel barriers with various CoFe(B) compositions using superconducting tunneling spectroscopy. We find that the Mg interface layer thickness dependence of TSP values for CoFeB/Mg/MgO junctio...

Ausführliche Beschreibung

Bibliographische Detailangaben
Hauptverfasser: Hyunsoo Yang, See-Hun Yang, Stuart Parkin
Format: Artikel
Sprache:English
Veröffentlicht: AIP Publishing LLC 2012-03-01
Schriftenreihe:AIP Advances
Online Zugang:http://dx.doi.org/10.1063/1.3690139