Clear evidence for strain changes according to Co layer thickness in metastable Co/Pd(111) multilayers: An extended x-ray absorption fine structure study

Physical Review B - Condensed Matter and Materials Physics

Volumn 53, Issue 16, 1996, Pages 11114-11119

  Kim, S K ^a   Koo, Y M ^a   Chernov, V A ^b   Padmore, H ^c  

^a Pohang University of Science and Technology (POSTECH)   (South Korea)

^b BUDKER INSTITUTE OF NUCLEAR PHYSICS   (Russian Federation)

^c LAWRENCE BERKELEY NATIONAL LABORATORY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0000968344     PISSN: 01631829     EISSN: None     Source Type: Journal    
DOI: 10.1103/PhysRevB.53.11114     Document Type: Article

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34. In determining the strain, only the first shells in RDF's are used, so it is not necessary to know whether Co atoms have fee or hcp structure; in other words, for both phases, the number of atoms around a center atom is 6 in the in-plane direction. The number of top and bottom atoms is also 6, when the closed stacking plane is parallel with the film surface. This was confirmed by cross-sectional photoimages of transmission electron microscope.
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36. This behavior arises from the interplay between interfacial energies including dislocations and bulk strain energies, and results in thickness-dependent interatomic distances which relax toward the equilibrium bulk value as individual layer thicknesses increase. For references, see W. D. Nix, Metall. Trans. A 20, 2217 (1989); J. P. Hirth and X. Feng, J. Appl. Phys. 67, 3343 (1990); R. Hull and J. C. Bean, Appl. Phys. Lett. 54, 925 (1989).
37. This behavior arises from the interplay between interfacial energies including dislocations and bulk strain energies, and results in thickness-dependent interatomic distances which relax toward the equilibrium bulk value as individual layer thicknesses increase. For references, see W. D. Nix, Metall. Trans. A 20, 2217 (1989); J. P. Hirth and X. Feng, J. Appl. Phys. 67, 3343 (1990); R. Hull and J. C. Bean, Appl. Phys. Lett. 54, 925 (1989).
38. This behavior arises from the interplay between interfacial energies including dislocations and bulk strain energies, and results in thickness-dependent interatomic distances which relax toward the equilibrium bulk value as individual layer thicknesses increase. For references, see W. D. Nix, Metall. Trans. A 20, 2217 (1989); J. P. Hirth and X. Feng, J. Appl. Phys. 67, 3343 (1990); R. Hull and J. C. Bean, Appl. Phys. Lett. 54, 925 (1989).
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