ULTRATHIN FILMS OF Coand Feon FeRh{001} AND FeRh{110}

S. K. Kim and F. Jona
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S. K. Kim: Department of Materials Science and Engineering, State University of New York, Stony Brook, NY 11794-2275, USA
F. Jona: Department of Materials Science and Engineering, State University of New York, Stony Brook, NY 11794-2275, USA

Surface Review and Letters (SRL), 2000, vol. 07, issue 01n02, 115-121

Abstract: Ultrathin films of Co and Fe have been grown on two clean surfaces of the binary alloy FeRh, namely the {110} and the {001} surface, and have been studied with quantitative low-energy electron diffraction (QLEED). On FeRh{110}, 25-Å-thick Co films are epitaxial, butnotpseudomorphic, and expose the basal (0001) plane of hcp Co. On FeRh{001}, 20-Å-thick Co films are pseudomorphic and assume the structure of strained$(11\bar 20)$hcp Co — a phenomenon already observed on Co films grown on FeAl{001}. Iron films, by contrast, are pseudomorphic both on FeRh{110} and on FeRh{001}, assuming a strained bcc structure. For all films, QLEED analysis determines both the bulk and the first interlayer spacings.

Keywords: 68.55.a; 61.14.Hg; 68.35.Bs (search for similar items in EconPapers)
Date: 2000
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DOI: 10.1142/S0218625X00000154

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