Magnetic moments in chemically ordered mass-selected CoPt and FePt clusters

被引：24

作者：

Dupuis, V. ^{[1
]}

Khadra, G. ^{[1
]}

Linas, S. ^{[1
]}

Hillion, A. ^{[1
]}

Gragnaniello, L. ^{[2
]}

Tamion, A. ^{[1
]}

Tuaillon-Combes, J. ^{[1
]}

Bardotti, L. ^{[1
]}

Tournus, F. ^{[1
]}

Otero, E. ^{[3
]}

Ohresser, P. ^{[3
]}

Rogalev, A. ^{[4
]}

Wilhelm, F. ^{[4
]}

机构：

[1] Univ Lyon 1, CNRS, UMR5306, Inst Lumiere Matiere, F-69622 Villeurbanne, France

[2] Ecole Polytech Fed Lausanne, Inst Condensed Matter Phys, CH-1015 Lausanne, Switzerland

[3] Lorme Merisiers, Synchrotron SOLEIL, F-91192 Gif Sur Yvette, France

[4] European Synchrotron Radiat Facil, F-38043 Grenoble, France

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2015年 / 383卷

关键词：

Magnetism of nanostructure; THIN-FILMS; DICHROISM; IRON; COBALT;

D O I：

10.1016/j.jmmm.2014.12.061

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

By combining high photon flux and chemical selectivity, X-ray absorption spectroscopy and X-ray magnetic circular dichroism (XMCD) have been used to study the magnetism of CoPt and FePt clusters before and after their transition to the chemically ordered L1(0)-like phase. Compared to the bulk, we find larger magnetic spin and orbital moments of Fe, Co and Pt atoms in nanoalloys. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：73 / 77

页数：5

共 34 条

[1] Influence of ligand states on the relationship between orbital moment and magnetocrystalline anisotropy
Andersson, C.
Sanyal, B.
Eriksson, O.
Nordstrom, L.
Karis, O.
Arvanitis, D.
[J]. PHYSICAL REVIEW LETTERS, 2007, 99 (17)
[2] Probing nanoscale structural and order/disorder phase transitions of supported Co-Pt clusters under annealing
Andreazza, Pascal
Mottet, Christine
Andreazza-Vignolle, Caroline
Penuelas, Jose
Tolentino, Helio C. N.
De Santis, Maurizio
Felici, Roberto
Bouet, Nathalie
[J]. PHYSICAL REVIEW B, 2010, 82 (15):
[3] Enhanced orbital magnetism in Fe50Pt50 nanoparticles
Antoniak, C.
Lindner, J.
Spasova, M.
Sudfeld, D.
Acet, M.
Farle, M.
Fauth, K.
Wiedwald, U.
Boyen, H. -G.
Ziemann, P.
Wilhelm, F.
Rogalev, A.
Sun, Shouheng
[J]. PHYSICAL REVIEW LETTERS, 2006, 97 (11)
[4] Correlation of magnetic moments and local structure of FePt nanoparticles
Antoniak, C.
Spasova, M.
Trunova, A.
Fauth, K.
Farle, M.
Wende, H.
[J]. 14TH INTERNATIONAL CONFERENCE ON X-RAY ABSORPTION FINE STRUCTURE (XAFS14), PROCEEDINGS, 2009, 190
[5] Inhomogeneous alloying in FePt nanoparticles as a reason for reduced magnetic moments
Antoniak, C.
Spasova, M.
Trunova, A.
Fauth, K.
Wilhelm, F.
Rogalev, A.
Minar, J.
Ebert, H.
Farle, M.
Wende, H.
[J]. JOURNAL OF PHYSICS-CONDENSED MATTER, 2009, 21 (33)
[6] Behavior of size selected iron-platinum clusters soft landed on carbon nanotubes
Bardotti, L.
Tournus, F.
Delagrange, R.
Benoit, J-M
Pierre-Louis, O.
Dupuis, V.
[J]. APPLIED SURFACE SCIENCE, 2014, 301 : 564 - 567
[7] On the relationship of magnetocrystalline anisotropy and stoichiometry in epitaxial L10 CoPt (001) and FePt (001) thin films -: art. no. 033904
Barmak, K
Kim, J
Lewis, LH
Coffey, KR
Toney, MF
Kellock, AJ
Thiele, JU
[J]. JOURNAL OF APPLIED PHYSICS, 2005, 98 (03)
[8] Magnetic and electronic properties of bulk and clusters of FePt L10
Barreteau, Cyrille
Spanjaard, Daniel
[J]. JOURNAL OF PHYSICS-CONDENSED MATTER, 2012, 24 (40)
[9] Element-specific quantitative determination of the local atomic order in CoPt alloy nanoparticles: Experiment and theory
Blanc, N.
Diaz-Sanchez, L. E.
Ramos, A. Y.
Tournus, F.
Tolentino, H. C. N.
De Santis, M.
Proux, O.
Tamion, A.
Tuaillon-Combes, J.
Bardotti, L.
Boisron, O.
Pastor, G. M.
Dupuis, V.
[J]. PHYSICAL REVIEW B, 2013, 87 (15)
[10] Measuring the L10 chemical order parameter of a single CoPt nanoparticle smaller than 4 nm
Blanc, Nils
Tournus, Florent
Dupuis, Veronique
[J]. PHYSICAL REVIEW B, 2011, 83 (09):

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