Published December 8, 2004 | Version v1
Journal article Metadata-only

X-ray magnetic circular dichroism at L23 edge of Co nanoclusters on Si(111) surface

Creators

  • 1. Graduate School of Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8526 (Japan)
  • 2. Hiroshima Synchrotron Radiation Center, Hiroshima University, 2-313 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8526 (Japan)
  • 3. Japan Synchrotron Radiation Institute, Mikazuki, Hyogo 679-5143, Japan (Japan)
  • 4. State Key Laboratory for Surface Physics and International Center for Quantum Structures, Institute of Physics, Chinese Academy of Science, Beijing 100080 (China)

Description

X-ray absorption spectroscopy (XAS) and x-ray magnetic circular dichroism (XMCD) have been used to study self-assembled Co nanoclusters on Si(111)-7 x 7 substrate. The multiplet fine structures of the XAS spectrum indicate that there is a contribution of Co3+ atoms in the cluster due to the Co 3d-Al 3p hybridization at the Co-Al interface. The very small and positive L2 peak compared to the negative peak at the L3 edge appearing in the XMCD spectrum indicates a localized atomic-like character of the 3d electrons. Estimation based on the sum rules gives a very large value of mL/(mS+7mT) = 0.37 for the Co nanoclusters

Availability note (English)

Available online at http://stacks.iop.org/0953-8984/16/S5783/cm4_48_048.pdf or at the Web site for the Journal of Physics. Condensed Matter (ISSN 1361-648X) http://www.iop.org/

Additional details

Identifiers

URL
http://stacks.iop.org/0953-8984/16/S5783/cm4_48_048.pdf; http://www.iop.org/;
DOI
10.1088/0953-8984/16/48/048;
PII
S0953-8984(04)79756-8;

Publishing Information

Journal Title
Journal of Physics. Condensed Matter
Journal Volume
16
Journal Issue
48
Journal Page Range
p. S5783-S5786
ISSN
0953-8984
CODEN
JCOMEL

Conference

Title
1. international conference on nanospintronics design and realization
Dates
24-28 May 2004
Place
Kyoto (Japan)

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
36035709
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ABSORPTION SPECTRA; ABSORPTION SPECTROSCOPY; ATOMS; COBALT; COBALT IONS; CRYSTAL STRUCTURE; ELECTRONS; FINE STRUCTURE; INTERFACES; MAGNETIC CIRCULAR DICHROISM; NANOSTRUCTURES; SILICON; SOLID CLUSTERS; SUBSTRATES; SUM RULES; SURFACES; X RADIATION; X-RAY SPECTROSCOPY
Descriptors DEC
CHARGED PARTICLES; DICHROISM; ELECTROMAGNETIC RADIATION; ELEMENTARY PARTICLES; ELEMENTS; EQUATIONS; FERMIONS; IONIZING RADIATIONS; IONS; LEPTONS; METALS; RADIATIONS; SEMIMETALS; SPECTRA; SPECTROSCOPY; TRANSITION ELEMENTS