Inelastic Scattering of Slow Electrons from a Heisenfoerg Ferromagnet

The magnetic inelastic scattering of low‐energy electrons by the (001) surface of a b.c.c. Heisenberg ferromagnet is considered. As a first step, the spectrum of elementary magnetic excitations is obtained, revealing the existence of optical and acoustic surface magnons, as well as a continuum of bu...

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Detalles Bibliográficos
Autores principales:	Harriague, S., Majlis, N., Makler, S.A., Olmedo, A.M.
Formato:	JOUR
Materias:	MAGNETIC MATERIALS - Ferromagnetism MAGNETISM
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_03701972_v66_n1_p377_Harriague
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

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spelling	todo:paper_03701972_v66_n1_p377_Harriague2023-10-03T15:28:38Z Inelastic Scattering of Slow Electrons from a Heisenfoerg Ferromagnet Harriague, S. Majlis, N. Makler, S.A. Olmedo, A.M. MAGNETIC MATERIALS - Ferromagnetism MAGNETISM The magnetic inelastic scattering of low‐energy electrons by the (001) surface of a b.c.c. Heisenberg ferromagnet is considered. As a first step, the spectrum of elementary magnetic excitations is obtained, revealing the existence of optical and acoustic surface magnons, as well as a continuum of bulk magnons. The differential cross‐section for inelastic scattering shows the contribution of those types of excitations; localized niagnons give a delta function contribution, while the contribution due to the bulk states is qualitatively different depending on the value of the ratio of the exchange integrals for surface and bulk spins, thereby providing a method for investigating the exchange interactions at the surface. Copyright © 1974 WILEY‐VCH Verlag GmbH & Co. KGaA JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_03701972_v66_n1_p377_Harriague
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	MAGNETIC MATERIALS - Ferromagnetism MAGNETISM
spellingShingle	MAGNETIC MATERIALS - Ferromagnetism MAGNETISM Harriague, S. Majlis, N. Makler, S.A. Olmedo, A.M. Inelastic Scattering of Slow Electrons from a Heisenfoerg Ferromagnet
topic_facet	MAGNETIC MATERIALS - Ferromagnetism MAGNETISM
description	The magnetic inelastic scattering of low‐energy electrons by the (001) surface of a b.c.c. Heisenberg ferromagnet is considered. As a first step, the spectrum of elementary magnetic excitations is obtained, revealing the existence of optical and acoustic surface magnons, as well as a continuum of bulk magnons. The differential cross‐section for inelastic scattering shows the contribution of those types of excitations; localized niagnons give a delta function contribution, while the contribution due to the bulk states is qualitatively different depending on the value of the ratio of the exchange integrals for surface and bulk spins, thereby providing a method for investigating the exchange interactions at the surface. Copyright © 1974 WILEY‐VCH Verlag GmbH & Co. KGaA
format	JOUR
author	Harriague, S. Majlis, N. Makler, S.A. Olmedo, A.M.
author_facet	Harriague, S. Majlis, N. Makler, S.A. Olmedo, A.M.
author_sort	Harriague, S.
title	Inelastic Scattering of Slow Electrons from a Heisenfoerg Ferromagnet
title_short	Inelastic Scattering of Slow Electrons from a Heisenfoerg Ferromagnet
title_full	Inelastic Scattering of Slow Electrons from a Heisenfoerg Ferromagnet
title_fullStr	Inelastic Scattering of Slow Electrons from a Heisenfoerg Ferromagnet
title_full_unstemmed	Inelastic Scattering of Slow Electrons from a Heisenfoerg Ferromagnet
title_sort	inelastic scattering of slow electrons from a heisenfoerg ferromagnet
url	http://hdl.handle.net/20.500.12110/paper_03701972_v66_n1_p377_Harriague
work_keys_str_mv	AT harriagues inelasticscatteringofslowelectronsfromaheisenfoergferromagnet AT majlisn inelasticscatteringofslowelectronsfromaheisenfoergferromagnet AT maklersa inelasticscatteringofslowelectronsfromaheisenfoergferromagnet AT olmedoam inelasticscatteringofslowelectronsfromaheisenfoergferromagnet
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Inelastic Scattering of Slow Electrons from a Heisenfoerg Ferromagnet

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