TY - JOUR
T1 - X-ray absorption spectroscopy study of diluted magnetic semiconductors
T2 - Zn1-xMxSe(M = Mn, Fe, Co) and Zn1-xMnxY(Y = Se, Te)
AU - Cho, Kwanghyun
AU - Koh, Hoon
AU - Park, Jonghyurk
AU - Oh, S. J.
AU - Kim, Hyeong Do
AU - Han, Moonsup
AU - Park, J. H.
AU - Chen, C. T.
AU - Kim, Y. D.
AU - Kim, J. S.
AU - Jonker, B. T.
PY - 2001/3/29
Y1 - 2001/3/29
N2 - We have investigated 3d electronic states of doped transition metals in II-VI diluted magnetic semiconductors Zn1-xMxSe(M = Mn, Fe, Co) and Zn1−xMnxY(Y = Se, Te), using the transition-metal L2,3-edge x-ray absorption spectroscopy (XAS) measurements. In order to explain the XAS spectra, we employed a tetragonal cluster model calculation, which includes not only the full ionic multiplet structure but also configuration interaction (CI). The results show that CI is essential to describe the experimental spectra adequately, indicating the strong hybridization between the transition metal 3d and the ligand p orbitals. In the study of Zn1-xMnxY(Y = Se, Te), we also found considerable spectral change in the Mn L2,3-edge XAS spectra for different ligands, confirming the importance of the hybridization effects in these materials.
AB - We have investigated 3d electronic states of doped transition metals in II-VI diluted magnetic semiconductors Zn1-xMxSe(M = Mn, Fe, Co) and Zn1−xMnxY(Y = Se, Te), using the transition-metal L2,3-edge x-ray absorption spectroscopy (XAS) measurements. In order to explain the XAS spectra, we employed a tetragonal cluster model calculation, which includes not only the full ionic multiplet structure but also configuration interaction (CI). The results show that CI is essential to describe the experimental spectra adequately, indicating the strong hybridization between the transition metal 3d and the ligand p orbitals. In the study of Zn1-xMnxY(Y = Se, Te), we also found considerable spectral change in the Mn L2,3-edge XAS spectra for different ligands, confirming the importance of the hybridization effects in these materials.
UR - http://www.scopus.com/inward/record.url?scp=0013457220&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.63.155203
DO - 10.1103/PhysRevB.63.155203
M3 - Article
AN - SCOPUS:0013457220
SN - 1098-0121
VL - 63
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 15
ER -