Magnetic anisotropy of ferromagnetic Fe and Co thin films (invited) (abstract)

Research output: Contribution to journalArticle

2 Citations (Scopus)

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 languageEnglish
Pages (from-to)5215
Number of pages1
JournalJournal of Applied Physics
Volume69
Issue number8
DOIs
Publication statusPublished - Apr 15 1991

Fingerprint

anisotropy
thin films
magnetic moments
calculus of variations
Dirac equation
spin-orbit interactions
electronics
Fermi surfaces
slabs
eigenvalues
transition metals
wave functions
electronic structure
orbits
moments
energy

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

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 journalArticle

@article{8be18620b3b14b179502d5fdd6445f0f,
title = "Magnetic anisotropy of ferromagnetic Fe and Co thin films (invited) (abstract)",
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.",
author = "Freeman, {Arthur J} and C. Chun",
year = "1991",
month = "4",
day = "15",
doi = "10.1063/1.348079",
language = "English",
volume = "69",
pages = "5215",
journal = "Journal of Applied Physics",
issn = "0021-8979",
publisher = "American Institute of Physics Publising LLC",
number = "8",

}

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 -