Papers

Peer-reviewed
Dec, 2003

Electronic and magnetic properties of MnAs nanoclusters studied by x-ray absorption spectroscopy and x-ray magnetic circular dichroism

APPLIED PHYSICS LETTERS
  • J Okabayashi
    • ,
  • M Mizuguchi
    • ,
  • M Oshima
    • ,
  • H Shimizu
    • ,
  • M Tanaka
    • ,
  • M Yuri
    • ,
  • CT Chen
Volume
83
Number
26
First page
5485
Last page
5487
Language
English
Publishing type
Research paper (scientific journal)
DOI
10.1063/1.1637430
Publisher
AMER INST PHYSICS
We have investigated the electronic and magnetic properties of a MnAs:GaAs granular film with MnAs clusters embedded in the GaAs matrix fabricated by high-temperature annealing of Ga1-xMnxAs using x-ray absorption spectroscopy (XAS) and x-ray magnetic circular dichroism (XMCD). The XAS line shapes in the Mn 2p core level changed from a localized structure to an itinerant NiAs-type one. Magnetic-field dependence of the XMCD revealed no hysteresis curves at the fixed photon energy where the large XMCD signals were observed, suggesting the superparamagnetic behavior at 100 K. (C) 2003 American Institute of Physics.
Link information
DOI
https://doi.org/10.1063/1.1637430
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000187536400047&DestApp=WOS_CPL
ID information
  • DOI : 10.1063/1.1637430
  • ISSN : 0003-6951
  • Web of Science ID : WOS:000187536400047
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