TY - JOUR
T1 - Perpendicular magnetic anisotropy of metallic multilayers composed of magnetic layers only
T2 - Ni/Co and Ni/Fe multilayers
AU - Kyuno, Kentaro
AU - Ha, Jae Geun
AU - Yamamoto, Ryoichi
AU - Asano, Setsuro
PY - 1996/5
Y1 - 1996/5
N2 - The magnetic anisotropy energies of multilayers which include only magnetic elements, Ni/Co and Ni/Fe, are calculated from first principles. Both systems show perpendicular anisotropy but the anisotropy energy is somewhat smaller than that of well-studied systems such as Pd/Co. The LDOS (local density of states) of Ni is as large as that of Co(Fe) at the Fermi level and contributes directly to perpendicular anisotropy, which means that the magnetic moments of Ni are also normal to the film plane. The anisotropy cannot be explained only in terms of the electronic structure of Co(Fe) near the Fermi level but that of Ni must also be considered. The origin of the perpendicular anisotropy is attributed to a large LDOS of \m\ = 2 character of Co(Fe) and Ni minority spin near the Fermi energy.
AB - The magnetic anisotropy energies of multilayers which include only magnetic elements, Ni/Co and Ni/Fe, are calculated from first principles. Both systems show perpendicular anisotropy but the anisotropy energy is somewhat smaller than that of well-studied systems such as Pd/Co. The LDOS (local density of states) of Ni is as large as that of Co(Fe) at the Fermi level and contributes directly to perpendicular anisotropy, which means that the magnetic moments of Ni are also normal to the film plane. The anisotropy cannot be explained only in terms of the electronic structure of Co(Fe) near the Fermi level but that of Ni must also be considered. The origin of the perpendicular anisotropy is attributed to a large LDOS of \m\ = 2 character of Co(Fe) and Ni minority spin near the Fermi energy.
KW - Electronic structure
KW - First principles theory
KW - Metallic multilayers
KW - Ni/Co
KW - Ni/Fe
KW - Perpendicular magnetic anisotropy
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U2 - 10.1143/jjap.35.2774
DO - 10.1143/jjap.35.2774
M3 - Article
AN - SCOPUS:0030147588
SN - 0021-4922
VL - 35
SP - 2774
EP - 2778
JO - Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
JF - Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
IS - 5 SUPPL. A
ER -