MAGNETIC ORDERING OF Tb OVERLAYERS ON Ni(ll1)

Authors

D. LaGraffe, Syracuse University
A. Miller, Syracuse University
Peter A. Dowben, University of Nebraska-LincolnFollow
M. Onellion, University of Wisconsin, Madison

Date of this Version

May 1990

Comments

Published in Mat. Res. Soc. Symp. Proc. Vol. 187. © 1990 Materials Research Society. Permission to use.

Abstract

The 5p_3/2 to 5p_1/2 shallow core level branching ratios in different - photoemission geometries provide a measure of the magnetic ordering in rare earth overlayers as a result of final state effects in photoemission. This 5p level anisotropy can be used to probe magnetic ordering across the Tb Curie temperature as well as magnetic ordering induced by a ferromagnetic substrate in Results are shown for paramagnetic Tb overlayers on Ni(111). The Ginsberg-Landau theory can be used to accurately model terbium thin films for T>T_c.