Abstract
The observation of transition metal (TM) magnetic moments in thin films aligned perpendicular to the surface has focused theoretical and experimental attention on the origin of magnetic anisotropy in these exciting low dimensional materials. In this paper we report on a study of the magnetic anisotropy of Fe and Co thin films originating from the spin orbit interaction term of the fully relativistic Dirac equation. We employ a total energy second variation FLAPW method in which: (i) the electronic charge density is determined with the semirelativistic (no spin orbit) FLAPW method; (ii) relativistic eigenvalues are calculated via a variational procedure using the semirelativistic wave functions as basis. The magnetic anisotropy energy of free standing Fe(001) and Co(001) monolayers yields in plane orientation of the spin moment. Semirelativistic calculations determined the magnetic moments of 1Fe/1Au, 1Fe/1Ag, or 1Fe/1Pd-all (001) slabs; the results agree well with those of monolayer Fe on thicker substrates. Magnetic anisotropy results1 for Fe monolayers on Au, Ag, and Pd(001) substrates give perpendicular anisotropy for these films, in agreement with experiment. Magnetic anisotropy calculations of Co thin films on CuPd and (001) and (111) substrates will also be presented. The origin of the magnetic anisotropy is discussed from a detailed analysis of the electronic structure (electronic bands, Fermi surface). Comparisons are given to the work of Gay and Richter and Fritsche et al.
| Original language | English |
|---|---|
| Pages (from-to) | 5215 |
| Number of pages | 1 |
| Journal | Journal of Applied Physics |
| Volume | 69 |
| Issue number | 8 |
| DOIs | |
| Publication status | Published - Apr 15 1991 |
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Magnetic anisotropy of ferromagnetic Fe and Co thin films (invited) (abstract). / Freeman, Arthur J; Chun, C.
In: Journal of Applied Physics, Vol. 69, No. 8, 15.04.1991, p. 5215.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Magnetic anisotropy of ferromagnetic Fe and Co thin films (invited) (abstract)
AU - Freeman, Arthur J
AU - Chun, C.
PY - 1991/4/15
Y1 - 1991/4/15
N2 - The observation of transition metal (TM) magnetic moments in thin films aligned perpendicular to the surface has focused theoretical and experimental attention on the origin of magnetic anisotropy in these exciting low dimensional materials. In this paper we report on a study of the magnetic anisotropy of Fe and Co thin films originating from the spin orbit interaction term of the fully relativistic Dirac equation. We employ a total energy second variation FLAPW method in which: (i) the electronic charge density is determined with the semirelativistic (no spin orbit) FLAPW method; (ii) relativistic eigenvalues are calculated via a variational procedure using the semirelativistic wave functions as basis. The magnetic anisotropy energy of free standing Fe(001) and Co(001) monolayers yields in plane orientation of the spin moment. Semirelativistic calculations determined the magnetic moments of 1Fe/1Au, 1Fe/1Ag, or 1Fe/1Pd-all (001) slabs; the results agree well with those of monolayer Fe on thicker substrates. Magnetic anisotropy results1 for Fe monolayers on Au, Ag, and Pd(001) substrates give perpendicular anisotropy for these films, in agreement with experiment. Magnetic anisotropy calculations of Co thin films on CuPd and (001) and (111) substrates will also be presented. The origin of the magnetic anisotropy is discussed from a detailed analysis of the electronic structure (electronic bands, Fermi surface). Comparisons are given to the work of Gay and Richter and Fritsche et al.
AB - The observation of transition metal (TM) magnetic moments in thin films aligned perpendicular to the surface has focused theoretical and experimental attention on the origin of magnetic anisotropy in these exciting low dimensional materials. In this paper we report on a study of the magnetic anisotropy of Fe and Co thin films originating from the spin orbit interaction term of the fully relativistic Dirac equation. We employ a total energy second variation FLAPW method in which: (i) the electronic charge density is determined with the semirelativistic (no spin orbit) FLAPW method; (ii) relativistic eigenvalues are calculated via a variational procedure using the semirelativistic wave functions as basis. The magnetic anisotropy energy of free standing Fe(001) and Co(001) monolayers yields in plane orientation of the spin moment. Semirelativistic calculations determined the magnetic moments of 1Fe/1Au, 1Fe/1Ag, or 1Fe/1Pd-all (001) slabs; the results agree well with those of monolayer Fe on thicker substrates. Magnetic anisotropy results1 for Fe monolayers on Au, Ag, and Pd(001) substrates give perpendicular anisotropy for these films, in agreement with experiment. Magnetic anisotropy calculations of Co thin films on CuPd and (001) and (111) substrates will also be presented. The origin of the magnetic anisotropy is discussed from a detailed analysis of the electronic structure (electronic bands, Fermi surface). Comparisons are given to the work of Gay and Richter and Fritsche et al.
UR - http://www.scopus.com/inward/record.url?scp=30244535125&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=30244535125&partnerID=8YFLogxK
U2 - 10.1063/1.348079
DO - 10.1063/1.348079
M3 - Article
AN - SCOPUS:30244535125
VL - 69
SP - 5215
JO - Journal of Applied Physics
JF - Journal of Applied Physics
SN - 0021-8979
IS - 8
ER -