XMCD study of the anisotropy of nanometric Co clusters in insulating and metallic matrices

F. Bartolomé; F. Luis; F. Petroff; L. M. García; J. Bartolomé; V. Cros; H. Jaffrès

doi:10.1016/j.jmmm.2003.12.1079

XMCD study of the anisotropy of nanometric Co clusters in insulating and metallic matrices

F. Bartolomé
, F. Luis
, F. Petroff
, L. M. García
, J. Bartolomé
, V. Cros
, H. Jaffrès

École Polytechnique

Research output: Contribution to journal › Article › peer-review

Abstract

The orbital to spin magnetic moment ratio of Co clusters homogeneously dispersed in Al₂O₃ is found to be much larger than in bulk Co and inversely proportional to the cluster diameter. For the same size, covering the clusters with a Cu layer increases m_L/m_S. An enhancement on m_L/m_S in the surface atoms is one order of magnitude more effective as a source of anisotropy than in the bulk.

Original language	English
Pages (from-to)	e1275-e1276
Journal	Journal of Magnetism and Magnetic Materials
Volume	272-276
Issue number	SUPPL. 1
DOIs	https://doi.org/10.1016/j.jmmm.2003.12.1079
Publication status	Published - 1 Jan 2004

Keywords

Magnetic anisotropy
Magnetic nanoparticles
Orbital moment
XMCD

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10.1016/j.jmmm.2003.12.1079

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title = "XMCD study of the anisotropy of nanometric Co clusters in insulating and metallic matrices",

abstract = "The orbital to spin magnetic moment ratio of Co clusters homogeneously dispersed in Al2O3 is found to be much larger than in bulk Co and inversely proportional to the cluster diameter. For the same size, covering the clusters with a Cu layer increases mL/mS. An enhancement on mL/mS in the surface atoms is one order of magnitude more effective as a source of anisotropy than in the bulk.",

keywords = "Magnetic anisotropy, Magnetic nanoparticles, Orbital moment, XMCD",

author = "F. Bartolom{\'e} and F. Luis and F. Petroff and Garc{\'i}a, \{L. M.\} and J. Bartolom{\'e} and V. Cros and H. Jaffr{\`e}s",

year = "2004",

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doi = "10.1016/j.jmmm.2003.12.1079",

language = "English",

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TY - JOUR

T1 - XMCD study of the anisotropy of nanometric Co clusters in insulating and metallic matrices

AU - Bartolomé, F.

AU - Luis, F.

AU - Petroff, F.

AU - García, L. M.

AU - Bartolomé, J.

AU - Cros, V.

AU - Jaffrès, H.

PY - 2004/1/1

Y1 - 2004/1/1

N2 - The orbital to spin magnetic moment ratio of Co clusters homogeneously dispersed in Al2O3 is found to be much larger than in bulk Co and inversely proportional to the cluster diameter. For the same size, covering the clusters with a Cu layer increases mL/mS. An enhancement on mL/mS in the surface atoms is one order of magnitude more effective as a source of anisotropy than in the bulk.

AB - The orbital to spin magnetic moment ratio of Co clusters homogeneously dispersed in Al2O3 is found to be much larger than in bulk Co and inversely proportional to the cluster diameter. For the same size, covering the clusters with a Cu layer increases mL/mS. An enhancement on mL/mS in the surface atoms is one order of magnitude more effective as a source of anisotropy than in the bulk.

KW - Magnetic anisotropy

KW - Magnetic nanoparticles

KW - Orbital moment

KW - XMCD

U2 - 10.1016/j.jmmm.2003.12.1079

DO - 10.1016/j.jmmm.2003.12.1079

M3 - Article

AN - SCOPUS:23144450754

SN - 0304-8853

VL - 272-276

SP - e1275-e1276

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

IS - SUPPL. 1

ER -

XMCD study of the anisotropy of nanometric Co clusters in insulating and metallic matrices

Abstract

Keywords

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