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Title: Investigation of spin and orbital moments of L1 0 FePtRh thin films
Authors: Xu, D.B.
Sun, C.J.
Chen, J.S. 
Han, S.-W.
Heald, S.M.
Rosenberg, R.A.
Chow, G.M. 
Issue Date: 1-Apr-2012
Citation: Xu, D.B., Sun, C.J., Chen, J.S., Han, S.-W., Heald, S.M., Rosenberg, R.A., Chow, G.M. (2012-04-01). Investigation of spin and orbital moments of L1 0 FePtRh thin films. Journal of Applied Physics 111 (7) : -. ScholarBank@NUS Repository.
Abstract: Fe 50Pt 50-xRh x films have attracted much interest recently due to their potential usage in heat assisted magnetic recording media and the ferromagnetic (FM) to antiferromagnetic (AFM) transition as Rh concentration is increased. In this study, we present an investigation of the spin moment (m s) and orbital moment (m l) of Fe in Fe 50Pt 50-xRh x films using x-ray magnetic circular dichroism. The measurements were made in the soft x-ray region along the film normal, which corresponds to the easy axis of the (001) textured L1 0 FePt with uni-axial magnetic anisotropy. They show that the magnetic moment of Fe mainly contributes to the whole magnetization of the films. The decrease of m l with Rh doping concentration implies a decrease of magneto-crystalline anisotropy, whereas the significant decrease of m s is consistent with the FM to AFM transition at above 15 at. of Rh. © 2012 American Institute of Physics.
Source Title: Journal of Applied Physics
ISSN: 00218979
DOI: 10.1063/1.3680542
Appears in Collections:Staff Publications

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