Abstract
An overview is given on the photoemission studies of the electronic structure of diluted magnetic semiconductors (DMS's), in particular of the prototypical ferromagnetic DMS Ga1-xMnxAs. Configuration-interaction cluster-model analyses of the photoemission data allow us to estimate the p-d exchange coupling constant and hence to predict how to increase the Curie temperature in new materials. Spectra near the Fermi level combined with the transport and optical properties suggest a highly incoherent metallic state for the ferromagnetic metallic phase. It is shown that new insight into the chemically and magnetically inhomogeneous states of DMS's can be gained by the temperature and magnetic field dependence of core-level magnetic circular dichroism signals.
| Original language | English |
|---|---|
| Pages (from-to) | 701-705 |
| Number of pages | 5 |
| Journal | Journal of Electron Spectroscopy and Related Phenomena |
| Volume | 144-147 |
| DOIs | |
| Publication status | Published - 2005 Jun |
| Externally published | Yes |
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Keywords
- Diluted magnetic semiconductors
- Magnetic circular dichroism
- Photoemission
ASJC Scopus subject areas
- Physical and Theoretical Chemistry
- Spectroscopy
- Atomic and Molecular Physics, and Optics
- Surfaces and Interfaces
Cite this
Photoemission and core-level magnetic circular dichroism studies of diluted magnetic semiconductors. / Fujimori, A.; Okabayashi, J.; Takeda, Y.; Mizokawa, Takashi; Okamoto, J.; Mamiya, K.; Saitoh, Y.; Muramatsu, Y.; Oshima, M.; Ohya, S.; Tanaka, M.
In: Journal of Electron Spectroscopy and Related Phenomena, Vol. 144-147, 06.2005, p. 701-705.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Photoemission and core-level magnetic circular dichroism studies of diluted magnetic semiconductors
AU - Fujimori, A.
AU - Okabayashi, J.
AU - Takeda, Y.
AU - Mizokawa, Takashi
AU - Okamoto, J.
AU - Mamiya, K.
AU - Saitoh, Y.
AU - Muramatsu, Y.
AU - Oshima, M.
AU - Ohya, S.
AU - Tanaka, M.
PY - 2005/6
Y1 - 2005/6
N2 - An overview is given on the photoemission studies of the electronic structure of diluted magnetic semiconductors (DMS's), in particular of the prototypical ferromagnetic DMS Ga1-xMnxAs. Configuration-interaction cluster-model analyses of the photoemission data allow us to estimate the p-d exchange coupling constant and hence to predict how to increase the Curie temperature in new materials. Spectra near the Fermi level combined with the transport and optical properties suggest a highly incoherent metallic state for the ferromagnetic metallic phase. It is shown that new insight into the chemically and magnetically inhomogeneous states of DMS's can be gained by the temperature and magnetic field dependence of core-level magnetic circular dichroism signals.
AB - An overview is given on the photoemission studies of the electronic structure of diluted magnetic semiconductors (DMS's), in particular of the prototypical ferromagnetic DMS Ga1-xMnxAs. Configuration-interaction cluster-model analyses of the photoemission data allow us to estimate the p-d exchange coupling constant and hence to predict how to increase the Curie temperature in new materials. Spectra near the Fermi level combined with the transport and optical properties suggest a highly incoherent metallic state for the ferromagnetic metallic phase. It is shown that new insight into the chemically and magnetically inhomogeneous states of DMS's can be gained by the temperature and magnetic field dependence of core-level magnetic circular dichroism signals.
KW - Diluted magnetic semiconductors
KW - Magnetic circular dichroism
KW - Photoemission
UR - http://www.scopus.com/inward/record.url?scp=20244383149&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=20244383149&partnerID=8YFLogxK
U2 - 10.1016/j.elspec.2005.01.212
DO - 10.1016/j.elspec.2005.01.212
M3 - Article
AN - SCOPUS:20244383149
VL - 144-147
SP - 701
EP - 705
JO - Journal of Electron Spectroscopy and Related Phenomena
JF - Journal of Electron Spectroscopy and Related Phenomena
SN - 0368-2048
ER -