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KMID : 0381920040340040255
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Korean Journal of Microscopy
2004 Volume.34 No. 4 p.255 ~ p.264
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Three-dimensional Structure Analysis of SmZn0.67Sb2 by Transmission Electron Microscopy
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Kim Jin-Gyu
Kang Sung-Kwon
Kim Wan-Cheol
Kim Youn-Joong
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Abstract
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The three-dimensional (3D) structure of an inorganic crystal, SmZn0.67Sb2 (space group P4/nmm, a=4.26 Å and c=10.37 Å was solved by electron crystallography. High resolution electron microscopy (HREM) images from 3 different major zone axes and selected-area electron diffraction patterns from 16 different zone axes were combined to obtain a 3D information. A crystallographic image processing (CIP) of HREM images was used for more accurate determination of the crystal structure. As a result of this electron crystallography, average phase errors (Phi ) of [001], [100] and [110] HREM images are 17.0 8.3 and 21.9, respectively. Xray crystallography of SmZn0.67Sb2 has attempted to compare accuracy of the structure determination by electron crystallography, which resulted in the cell parameters of $a=4.2976(6)Å and c=10.287(2)Å, and the R-factor (Rsym) of 4.16%.
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KEYWORD
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Crystallographic image processing (CIP) , Electron crystallography , HREM , Inorganic crystal , Three-dimensional (3D) structure analysis ,
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