TY - JOUR
T1 - Influence of structure on the magnetic anisotropy of Co/Pd (001) epitaxial superlattices
AU - Engel, Brad N.
AU - Wiedmann, Michael H.
AU - Van Leeuwen, Robert A.
AU - Falco, Charles M.
AU - Wu, Lianjun
AU - Nakayama, Noriaki
AU - Shinjo, Teruya
N1 - Funding Information:
This work was supported by the University of Arizona Optical Data Storage Center and the US Department of Energy Grant No. DE-FG(12-87ER45297. This collaboration was made possi-b\[e by the US National Science Foundation Travel Grant No. INT-t~)-16752 and the Japan Society for the. Promotion of Science.
PY - 1992
Y1 - 1992
N2 - We have used molecular beam epitaxy to grow Co/Pd superlattices oriented along the fcc [001] crystal direction. A series of samples of fixed Pd thickness (tPd = 9±1 A ̊) and varying Co thickness (2≤tCo≤8 A ̊) was prepared. The uniaxial magnetic anisotropy in these films displayed both a large perpendicular interface contribution and a large in-plane volume contribution. Using off-axial X-ray diffraction techniques to measure the fcc (113) Bragg reflection, the in-plane lattice spacing of three samples was directly measured. These measurements are consistent with a coherent strain model with the Co layers expanded in-plane by 8.0%±0.5% over that of bulk fcc Co. An estimate of the in-plane magnetoelastic energy calculated from this strain is in very good agreement with our observed volume anisotropy in these superlattices.
AB - We have used molecular beam epitaxy to grow Co/Pd superlattices oriented along the fcc [001] crystal direction. A series of samples of fixed Pd thickness (tPd = 9±1 A ̊) and varying Co thickness (2≤tCo≤8 A ̊) was prepared. The uniaxial magnetic anisotropy in these films displayed both a large perpendicular interface contribution and a large in-plane volume contribution. Using off-axial X-ray diffraction techniques to measure the fcc (113) Bragg reflection, the in-plane lattice spacing of three samples was directly measured. These measurements are consistent with a coherent strain model with the Co layers expanded in-plane by 8.0%±0.5% over that of bulk fcc Co. An estimate of the in-plane magnetoelastic energy calculated from this strain is in very good agreement with our observed volume anisotropy in these superlattices.
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U2 - 10.1016/0169-4332(92)90512-V
DO - 10.1016/0169-4332(92)90512-V
M3 - Article
AN - SCOPUS:4243846216
VL - 60-61
SP - 776
EP - 780
JO - Applied Surface Science
JF - Applied Surface Science
SN - 0169-4332
IS - C
ER -