Magnetic anisotropy of 4d-transition-metal monolayers: The role of low-energy valence bands

Magnetic anisotropy energy (MAE) and orbital magnetic moments of 4d-transition-metal monolayers, both free standing and grown on Fe-bcc(001) slabs, are calculated. We find that energy differences due to spin-orbit interaction effects coming from bands lying well below the Fermi level cannot be negle...

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Detalles Bibliográficos
Autores principales: Gómez Abal, Ricardo Isaac, Llois, Ana María
Publicado: 1999
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01631829_v60_n18_p12841_GomezAbal
http://hdl.handle.net/20.500.12110/paper_01631829_v60_n18_p12841_GomezAbal
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_01631829_v60_n18_p12841_GomezAbal
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spelling paper:paper_01631829_v60_n18_p12841_GomezAbal2023-06-08T15:13:53Z Magnetic anisotropy of 4d-transition-metal monolayers: The role of low-energy valence bands Gómez Abal, Ricardo Isaac Llois, Ana María Magnetic anisotropy energy (MAE) and orbital magnetic moments of 4d-transition-metal monolayers, both free standing and grown on Fe-bcc(001) slabs, are calculated. We find that energy differences due to spin-orbit interaction effects coming from bands lying well below the Fermi level cannot be neglected and, actually, determine the MAE. On the contrary, the breaking of degeneracies near the Fermi level, although important, does not determine the spin orientation. Even if there is some correlation between the spin magnetic moment and the dependence of the MAE on the magnetic coupling with the substrate, we find no direct relationship between the MAE and the z component of the d-electron expectation value of the intra-atomic magnetic dipole operator 〈T z〉, as it has been recently assumed. ©1999 The American Physical Society. Fil:Gómez-Abal, R. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Llois, A.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 1999 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01631829_v60_n18_p12841_GomezAbal http://hdl.handle.net/20.500.12110/paper_01631829_v60_n18_p12841_GomezAbal
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description Magnetic anisotropy energy (MAE) and orbital magnetic moments of 4d-transition-metal monolayers, both free standing and grown on Fe-bcc(001) slabs, are calculated. We find that energy differences due to spin-orbit interaction effects coming from bands lying well below the Fermi level cannot be neglected and, actually, determine the MAE. On the contrary, the breaking of degeneracies near the Fermi level, although important, does not determine the spin orientation. Even if there is some correlation between the spin magnetic moment and the dependence of the MAE on the magnetic coupling with the substrate, we find no direct relationship between the MAE and the z component of the d-electron expectation value of the intra-atomic magnetic dipole operator 〈T z〉, as it has been recently assumed. ©1999 The American Physical Society.
author Gómez Abal, Ricardo Isaac
Llois, Ana María
spellingShingle Gómez Abal, Ricardo Isaac
Llois, Ana María
Magnetic anisotropy of 4d-transition-metal monolayers: The role of low-energy valence bands
author_facet Gómez Abal, Ricardo Isaac
Llois, Ana María
author_sort Gómez Abal, Ricardo Isaac
title Magnetic anisotropy of 4d-transition-metal monolayers: The role of low-energy valence bands
title_short Magnetic anisotropy of 4d-transition-metal monolayers: The role of low-energy valence bands
title_full Magnetic anisotropy of 4d-transition-metal monolayers: The role of low-energy valence bands
title_fullStr Magnetic anisotropy of 4d-transition-metal monolayers: The role of low-energy valence bands
title_full_unstemmed Magnetic anisotropy of 4d-transition-metal monolayers: The role of low-energy valence bands
title_sort magnetic anisotropy of 4d-transition-metal monolayers: the role of low-energy valence bands
publishDate 1999
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01631829_v60_n18_p12841_GomezAbal
http://hdl.handle.net/20.500.12110/paper_01631829_v60_n18_p12841_GomezAbal
work_keys_str_mv AT gomezabalricardoisaac magneticanisotropyof4dtransitionmetalmonolayerstheroleoflowenergyvalencebands
AT lloisanamaria magneticanisotropyof4dtransitionmetalmonolayerstheroleoflowenergyvalencebands
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