Egelhoff, W.
, McMichael, R.
, Stiles, M.
, Powell, C.
, Bonevich, J.
, Wormington, M.
, Eastwood, D.
and Tanner, B.
(1970),
Suppressing of Unidirectional Coupling in Magnetic Tunnel Junctions by Preoxidation: Structural Studies, Journal of Applied Physics
(Accessed April 20, 2024)
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Suppressing of Unidirectional Coupling in Magnetic Tunnel Junctions by Preoxidation: Structural Studies
Author(s)
, , , , , M Wormington, D S. Eastwood, B K. Tanner
Abstract
Pre-oxidation of the bottom electrode prior to deposition of Al_{2}O_{3} or MgO is very effective as a general approach to suppressing the unidirectional coupling that is commonly observed in magnetic tunnel junctions. In this paper, we report structural studies of this effect using grazing incidence x-ray reflectometry and transmission electron microscopy. The results suggest that the decrease in unidirectional coupling is not a result of a simple smoothing of conformal roughness, and an alternative mechanism must be sought.Citation
Journal of Applied Physics
Pub Type
Journals
Keywords
magnetic tunnel junctions, pre-oxidation, unidirectional coupling
Citation
Created August 26, 2016, Updated October 8, 2021