Large variations in the magnetization of co clusters induced by noble-metal coating

We report calculations of the electronic and magnetic properties of small Co clusters, coated with Ag or Cu, performed with a parametrized tight-binding method. For a given number of Co atoms in a cluster, we obtain a large range of magnetization values, depending on the size and shape of the coatin...

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Autores principales: Guevara, Alejandro Javier, Llois, Ana María, Weissmann, Mariana
Publicado: 1998
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00319007_v81_n24_p5306_Guevara
http://hdl.handle.net/20.500.12110/paper_00319007_v81_n24_p5306_Guevara
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling paper:paper_00319007_v81_n24_p5306_Guevara2023-06-08T14:58:28Z Large variations in the magnetization of co clusters induced by noble-metal coating Guevara, Alejandro Javier Llois, Ana María Weissmann, Mariana We report calculations of the electronic and magnetic properties of small Co clusters, coated with Ag or Cu, performed with a parametrized tight-binding method. For a given number of Co atoms in a cluster, we obtain a large range of magnetization values, depending on the size and shape of the coating. The noble metal develops a net polarization that changes appreciably the total magnetic moment of the cluster. This result is reinforced by ab initio calculations for mixed slabs, where the corrugation of a nonmagnetic covering also produces important variations in the total magnetic moment. © 1998 The American Physical Society. Fil:Guevara, J. 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. Fil:Weissmann, M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 1998 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00319007_v81_n24_p5306_Guevara http://hdl.handle.net/20.500.12110/paper_00319007_v81_n24_p5306_Guevara
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description We report calculations of the electronic and magnetic properties of small Co clusters, coated with Ag or Cu, performed with a parametrized tight-binding method. For a given number of Co atoms in a cluster, we obtain a large range of magnetization values, depending on the size and shape of the coating. The noble metal develops a net polarization that changes appreciably the total magnetic moment of the cluster. This result is reinforced by ab initio calculations for mixed slabs, where the corrugation of a nonmagnetic covering also produces important variations in the total magnetic moment. © 1998 The American Physical Society.
author Guevara, Alejandro Javier
Llois, Ana María
Weissmann, Mariana
spellingShingle Guevara, Alejandro Javier
Llois, Ana María
Weissmann, Mariana
Large variations in the magnetization of co clusters induced by noble-metal coating
author_facet Guevara, Alejandro Javier
Llois, Ana María
Weissmann, Mariana
author_sort Guevara, Alejandro Javier
title Large variations in the magnetization of co clusters induced by noble-metal coating
title_short Large variations in the magnetization of co clusters induced by noble-metal coating
title_full Large variations in the magnetization of co clusters induced by noble-metal coating
title_fullStr Large variations in the magnetization of co clusters induced by noble-metal coating
title_full_unstemmed Large variations in the magnetization of co clusters induced by noble-metal coating
title_sort large variations in the magnetization of co clusters induced by noble-metal coating
publishDate 1998
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00319007_v81_n24_p5306_Guevara
http://hdl.handle.net/20.500.12110/paper_00319007_v81_n24_p5306_Guevara
work_keys_str_mv AT guevaraalejandrojavier largevariationsinthemagnetizationofcoclustersinducedbynoblemetalcoating
AT lloisanamaria largevariationsinthemagnetizationofcoclustersinducedbynoblemetalcoating
AT weissmannmariana largevariationsinthemagnetizationofcoclustersinducedbynoblemetalcoating
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