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Atomic and Electronic Structures of Cd0.96Zn0.04Te(l10) Surface
作者姓名:查钢强 介万奇 张文华 李强 徐法强
作者单位:[1]State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an 710072 [2]National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029
基金项目:Supported by the National Natural Science Foundation of China under Grant No 50336040, and the National Synchrotron Raxiiation Laboratory of University of Science and Technology of China.
摘    要:X-Ray diffraction is used to analyse the lattice structure of Cdo.96Zno.o4 Te (CZT), and the lattice constant is measured to be 0.647nm. The atomic structure of the clean CZT(110) surface obtained by Ar^+ etching in vacuum is observed by low-energy electron diffraction, where no surface reconstruction is discovered. Angleresolved photoemission spectroscopy was used to characterize the surface state of the clean CZT (110) surface, by which we find a 1.5-eV-wide surface band with the peak at 0.9eV below the Fermi energy containing about 6.9 × 10^14 electrons/cm^2, approximately one electron per surface atom.

关 键 词:原子结构 电子结构 X射线 衍射 格子
收稿时间:2005-05-11
修稿时间:2005-05-11
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