Abstract
In order to realize magnetic nanocrystals for spin electronic devices, we have successfully grown MnAs and/or MnSb nanocrystals on atomically controlled GaAs(001) substrates by molecular beam epitaxy. Surface structures of sulfur- and antimony-terminated GaAs substrates are characterized by synchrotron radiation soft X-ray standing waves. Then, Mn pnictide nanocrystals are grown by super Volmer-Weber epitaxy, taking advantage of low surface energy. MnAs and/or MnSb nanocrystals grown on sulfur-terminated GaAs(001) substrates show ferromagnetic properties with size of 20-30 nm and surface density of more than 1010 cm-2 spectroscopy revealed the electronic structures of these magnetic dots.
| Original language | English |
|---|---|
| Pages (from-to) | 165-174 |
| Number of pages | 10 |
| Journal | Journal of Electron Spectroscopy and Related Phenomena |
| Volume | 124 |
| Issue number | 2-3 |
| DOIs | |
| Publication status | Published - 2002 Jan 1 |
| Externally published | Yes |
Keywords
- GaAs
- Magnetic nanostructure
- MnAs
- MnSb
- Photoelectron spectroscopy
- Sulfur termination
- Synchroton radiaiton
- X-ray standing waves
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Radiation
- Atomic and Molecular Physics, and Optics
- Condensed Matter Physics
- Spectroscopy
- Physical and Theoretical Chemistry
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Cite this
Oshima, M., Mizuguchi, M., Ono, K., Akinaga, H., & Sugiyama, M. (2002). Formation, properties and photoelectron spectroscopy of magnetic nanostructures. Journal of Electron Spectroscopy and Related Phenomena, 124(2-3), 165-174. https://doi.org/10.1016/S0368-2048(02)00052-X