Published September 2007
| Version v1
Journal article
Magnetic properties of Co nanoparticle granular films capped with Pt
Creators
- 1. Instituto de Ciencia de Materiales de Aragon, Dpto. Fisica de la Materia Condensada, CSIC-Universidad de Zaragoza, 50009 Zaragoza (Spain)
- 2. Unite Mixte de Physique CNRS/Thales, Route Departementale 128, 91767 Palaiseau Cedex, France and Universite Paris-Sud, 91405 Orsay Cedex (France)
- 3. European Synchrotron Radiation Facility, BP220, F-38043, Grenoble (France)
Description
Magnetization and susceptibility measurements have been performed on Co granular (Al2O3/Co/Pt)25 multilayers. A cusp-like anomaly is present in the susceptibility, which together with magnetization measurements suggests that the samples behave as an amorphous Correlated-Super-Spin system. The presence of CoPt partial alloying is proven by the XANES spectra. The XMCD spectra show that the interfacial Pt atoms become magnetically polarized by hybridization of the Pt 5d and Co 3d electrons, and are ferromagnetically coupled to the Co particle moments. The Pt layer is effective in transmitting interparticle exchange coupling
Additional details
Identifiers
- DOI
- 10.1016/j.jmmm.2007.02.060;
- PII
- S0304-8853(07)00102-3;
Publishing Information
- Journal Title
- Journal of Magnetism and Magnetic Materials
- Journal Volume
- 316
- Journal Issue
- 2
- Journal Page Range
- p. e9-e12
- ISSN
- 0304-8853
- CODEN
- JMMMDC
Conference
- Title
- Joint European magnetic symposia
- Dates
- 26-30 Jun 2006
- Place
- San Sebastian (Spain)
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 39032906
- Subject category
- S36: MATERIALS SCIENCE;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- ABSORPTION SPECTROSCOPY; ALUMINIUM OXIDES; COBALT; COUPLING; CUSPED GEOMETRIES; ELECTRONS; FILMS; LAYERS; MAGNETIC PROPERTIES; MAGNETIZATION; PLATINUM; SPECTRA; X-RAY SPECTROSCOPY
- Descriptors DEC
- ALUMINIUM COMPOUNDS; CHALCOGENIDES; ELEMENTARY PARTICLES; ELEMENTS; FERMIONS; LEPTONS; MAGNETIC FIELD CONFIGURATIONS; METALS; OPEN CONFIGURATIONS; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; PLATINUM METALS; SPECTROSCOPY; TRANSITION ELEMENTS
Optional Information
- Copyright
- Copyright (c) 2007 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.