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Volumn 71, Issue 15, 1993, Pages 2493-2496

Magneto-optical Kerr spectroscopy of a new chemically ordered alloy: Co3Pt

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Indexed keywords


EID: 0000594480     PISSN: 00319007     EISSN: None     Source Type: Journal    
DOI: 10.1103/PhysRevLett.71.2493     Document Type: Article
Times cited : (181)

References (25)
  • 19
    • 84931522390 scopus 로고    scopus 로고
    • Strictly, this model applies to the hcp to fcc transition of a chemically homogeneous sample. However, the model provides a reasonable approximation to the scattering along (10q z) of alloy films with nearly random in plane chemical order. Similar fcc fractions are obtained through comparison of the fcc and hcp peak integrated areas.
  • 21
    • 84931522389 scopus 로고    scopus 로고
    • These measurements were performed at beam line x20c of the National Synchrotron Light Source, Brookhaven, New York.
  • 23
    • 84931522394 scopus 로고    scopus 로고
    • At very low deposition temperatures the kinetics limit even MBE growth as evidenced by the fcc inclusions and the absence of chemical ordering in the 450 K film.
  • 25
    • 84931522393 scopus 로고    scopus 로고
    • B.E. Warren, X ray Diffraction (Dover Publications, Inc., New York, 1990), p. 208. S is defined as (rPt - xPt)/yCo where rPt is the fraction of Pt sites correctly occupied, xPt is the Pt sample fraction, and yCo is the fraction of Co sites in the perfectly ordered alloy. We assume the perfectly ordered alloy consists of alternating CoCo and CoPt planes. This structure can be represented as two hexagonal sublattices, one containing only Co and the other consisting of alternating layers of Co and Pt. We apply the definition of S to the CoPt sublattice. With this definition S=1 for Co3Pt with perfect layerwise chemical order while S=0 for complete chemical disorder. By applying the definition of S to only the CoPt sublattice, S is sensitive only to layerwise chemical order and not to in plane chemical order.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.