TITLE

Amorphous GdCo: Effect of surface segregation on reading of the magnetization by spin-polarized photoemission

AUTHOR(S)
Bona, G. L.; Meier, F.; Siegmann, H. C.; Gambino, R. F.
PUB. DATE
January 1988
SOURCE
Applied Physics Letters;1/25/1988, Vol. 52 Issue 4, p334
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Spin-polarized photoemission can be used to read the surface magnetization direction of perpendicularly magnetized amorphous GdCo films. Effects specific of the photoemission process are observed: (1) surface depolarization by disordered Gd moments in the outermost segregated layers of the film, (2) change of the polarization upon varying the probing depth of the photoelectrons. Both effects are consequences of the inhomogeneous surface composition of amorphous GdCo due to segregation.
ACCESSION #
9825729

 

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