Perpendicular magnetic anisotropy induced by a cap layer in ultrathin MgO/CoFeB/Nb

Perpendicular magnetic anisotropy has been observed in MgO/CoFeB/Ta but not in MgO/CoFeB/Ru, indicating that the metal cap layer is crucial. In this study, we grew MgO/CoFeB (1.2 nm)/Nb (1–2.5 nm) by sputtering and found that the magnetic anisotropy depends upon the Na thickness. The easy axis is in...

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Veröffentlicht in:	Journal of applied physics 2012-08, Vol.112 (3)
Hauptverfasser:	Cheng, Tsung-I, Cheng, Chih-Wei, Chern, G.
Format:	Artikel
Sprache:	eng
Schlagworte:	Decay Magnesium oxide Magnetic anisotropy Niobium Sputtering Tantalum
Online-Zugang:	Volltext
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