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Author Hsiao, C. H. ♦ Ouyang, Chuenhou ♦ Yao, Y. D. ♦ Lo, S. C. ♦ Chang, H. W.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS ♦ ANISOTROPY ♦ COERCIVE FORCE ♦ DEPOSITION ♦ DISLOCATIONS ♦ ELECTRON BEAMS ♦ MAGNESIUM OXIDES ♦ MAGNETIC FLUX ♦ NANOSTRUCTURES ♦ ORDER PARAMETERS ♦ RELAXATION ♦ STACKING FAULTS ♦ STRAINS ♦ THIN FILMS
Abstract FePd (001) films, prepared by an electron beam deposition system on MgO(100), exhibit a perpendicular magnetic anisotropy (1.7 × 10{sup 7 }erg/cc) with a high order parameter (0.92). The relation between stacking faults induced by the strain relaxation, which act as strong domain wall pinning sites, and the perpendicular coercivity of (001) oriented L1{sub 0} FePd films prepared at different temperatures have been investigated. Perpendicular coercivity can be apparently enhanced by raising the stacking fault densities, which can be elevated by climbing dissociation of total dislocation. The increased stacking fault densities (1.22 nm{sup −2}) with large perpendicular coercivity (6000 Oe) are obtained for samples prepared at 650 °C. This present work shows through controlling stacking fault density in FePd film, the coercivity can be manipulated, which can be applied in future magnetic devices.
ISSN 00036951
Educational Use Research
Learning Resource Type Article
Publisher Date 2015-10-05
Publisher Place United States
Journal Applied Physics Letters
Volume Number 107
Issue Number 14


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