TY - JOUR
T1 - Magnetic and structural properties of quaternary (Fe-Co-Ni)50Pt50 alloy thin films
AU - Suzuki, Takao
AU - Kanazawa, Hiroshi
AU - Sakuma, Akimasa
N1 - Funding Information:
Manuscript received May 7, 2002; revised June 3, 2002. The work was supported in part by Grant-in-Aid for the Academic Frontier Center of the Ministry of Education, Science, Sports and Culture for the Future Data Storage Materials Research Project.
PY - 2002/9
Y1 - 2002/9
N2 - The intrinsic perpendicular magnetic anisotropy constant Ku for (Fe-Co-Ni)50Pt50 quaternary alloy and (Fe-Cr)50Pt50 alloy thin films is discussed as a function of structure and composition. Both Ms and the estimated Ku values obtained by the extrapolation to order parameter S = 1 using the dependence of Ku on S become maximum at the valence electron number nelect = 8, being independent of alloy system. The magnetic anisotropy is determined to the first approximation by the Fermi energy, which changes with the number of electrons, but not by the band structure itself.
AB - The intrinsic perpendicular magnetic anisotropy constant Ku for (Fe-Co-Ni)50Pt50 quaternary alloy and (Fe-Cr)50Pt50 alloy thin films is discussed as a function of structure and composition. Both Ms and the estimated Ku values obtained by the extrapolation to order parameter S = 1 using the dependence of Ku on S become maximum at the valence electron number nelect = 8, being independent of alloy system. The magnetic anisotropy is determined to the first approximation by the Fermi energy, which changes with the number of electrons, but not by the band structure itself.
KW - (Fe-Co-Ni-Cr)Pt ordered alloys
KW - Magnetic anisotropy
KW - Order parameter
KW - Valence electron number
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U2 - 10.1109/TMAG.2002.803103
DO - 10.1109/TMAG.2002.803103
M3 - Conference article
AN - SCOPUS:0036762510
VL - 38
SP - 2794
EP - 2795
JO - IEEE Transactions on Magnetics
JF - IEEE Transactions on Magnetics
SN - 0018-9464
IS - 5 I
T2 - 2002 International Magnetics Conference (Intermag 2002)
Y2 - 28 April 2002 through 2 May 2002
ER -