AVS 45th International Symposium
    Magnetic Interfaces and Nanostructures Technical Group Thursday Sessions
       Session MI-ThP

Paper MI-ThP2
Magnetic Moment of fcc Fe in [Fe/Pd@sub x@Rh@sub 1-x@] Multilayers

Thursday, November 5, 1998, 5:30 pm, Room Hall A

Session: Magnetic Interfaces and Nanostructures Poster Session
Presenter: T. Lin, Ohio University
Authors: T. Lin, Ohio University
M.A. Tomaz, Ohio University
W.L. O'Brien, University of Wisconsin, Madison
T.K. Sham, University of Western Ontario, Canada
G. Retzlaff, University of Wisconsin, Madison
G.R. Harp, Ohio University
Correspondent: Click to Email
Results are presented of the magnetic state of fcc Fe in [Fe/Pd@sub x@Rh@sub 1-x@ 10Å] superlattices with x = 0-100%. It was found that 10Å Fe layers have an fcc structure and undergo a magnetic phase transition from paramagnetic to ferromagnetic with increasing x. Its magnetic moment increases to a maximum near x=50%, and then decreases monotonically with increasing x. For thicker Fe layers, a similar behavior is observed, except that the magnetic phase transition can be suppressed. This behavior is explained in terms of small structural variations of the superlattices due to the different lattice constants of Pd and Rh. The sample structures are characterized using x-ray diffraction, and are characterized magnetically using magneto-optic Kerr effect magnetometry and x-ray magnetic circular dichroism.