Fluorescence EXAFS analysis of nanoscale zinc-blende MnAs dots grown on GaAs(001) by molecular beam epitaxy

H. Ofuchi, J. Okabayashi, M. Mizuguchi, M. Yamada, K. Ono, Y. Takeda, M. Oshima, H. Akinaga

Research output: Contribution to journalConference articlepeer-review

1 Citation (Scopus)

Abstract

In this work, geometric structures for ferromagnetic nanoscale zinc-blende MnAs dots grown on a sulfur-passivated GaAs(001) were investigated by using fluorescence EXAFS measurement. EXAFS measurements revealed that MnAs dots grown on GaAs(001) substrate did not form NiAs-type structure but zinc-blende structure. The MnAs bond length in the MnAs dots is about 2.48 Å which is close to that which was estimated from lattice constant of zinc-blende MnAs obtained by density-functional calculations. Existence of zinc-blende MnS (β-MnS) phase was also observed by EXAFS measurements.

Original languageEnglish
Pages (from-to)431-432
Number of pages2
JournalPhysica Scripta T
VolumeT115
DOIs
Publication statusPublished - 2005
Event12th X-ray Absorption Fine Structure International Conference, XAFS12 - Malmo, Sweden
Duration: 2003 Jun 232003 Jun 27

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Mathematical Physics
  • Condensed Matter Physics

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