CuAu-type ordering in epitaxialCuInS2films
作者:
D. S. Su,
W. Neumann,
R. Hunger,
P. Schubert-Bischoff,
M. Giersig,
H. J. Lewerenz,
R. Scheer,
E. Zeitler,
期刊:
Applied Physics Letters
(AIP Available online 1998)
卷期:
Volume 73,
issue 6
页码: 785-787
ISSN:0003-6951
年代: 1998
DOI:10.1063/1.122001
出版商: AIP
数据来源: AIP
摘要:
Ordering of Cu and In atoms in near-stoichiometricCuInS2epitaxial films grown on Si (111) by molecular beam epitaxy was studied by transmission electron microscopy. Nonchalcopyrite ordering of the metal atoms inCuInS2is observed, which is identified as CuAu-type ordering. Sharp spots in electron diffraction patterns reveal the ordered Cu and In atom planes alternating along the [001] direction over a long range. High-resolution electron microscopy confirms this ordering. The CuAu-ordered structure coexists with the chalcopyrite ordered structure, in agreement with theoretical prediction. ©1998 American Institute of Physics.
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