Atomic configuration in core structure of Lomer dislocation in Si0.76Ge0.24/Si.
The core structure of a Lomer dislocation in SiGe/Si system has been revealed at atomic level. This is attained by applying the image deconvolution technique in combination with dynamical diffraction effect correction to the high-resolution image taken with a 200 kV field-emission gun high-resolution electron microscope. The Lomer dislocation has a Hornstra-like core. The contrast of the image simulated on the basis of derived atomic configuration is in agreement with that of the experimental image.
Wang
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Institute of Physics & Center for Condensed Matter Physics, Chinese Academy of Sciences, Beijing.
Chen
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Li
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Kawasaki
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Oikawa
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