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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Autores principales: Gómez-Abal, R., Llois, A.M.
Formato: JOUR
Lenguaje:English
Acceso en línea: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
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spelling todo:paper_01631829_v60_n18_p12841_GomezAbal2023-10-03T15:01:48Z Magnetic anisotropy of 4d-transition-metal monolayers: The role of low-energy valence bands Gómez-Abal, R. Llois, A.M. 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. JOUR English info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar 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)
language English
orig_language_str_mv English
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.
format JOUR
author Gómez-Abal, R.
Llois, A.M.
spellingShingle Gómez-Abal, R.
Llois, A.M.
Magnetic anisotropy of 4d-transition-metal monolayers: The role of low-energy valence bands
author_facet Gómez-Abal, R.
Llois, A.M.
author_sort Gómez-Abal, R.
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
url http://hdl.handle.net/20.500.12110/paper_01631829_v60_n18_p12841_GomezAbal
work_keys_str_mv AT gomezabalr magneticanisotropyof4dtransitionmetalmonolayerstheroleoflowenergyvalencebands
AT lloisam magneticanisotropyof4dtransitionmetalmonolayerstheroleoflowenergyvalencebands
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