Ab initio study of misfit dislocations at the SiC/Si(001) interface.
نویسندگان
چکیده
The high lattice mismatched SiC/Si(001) interface was investigated by means of combined classical and ab initio molecular dynamics. Among the several configurations analyzed, a dislocation network pinned at the interface was found to be the most efficient mechanism for strain relief. A detailed description of the dislocation core is given, and the related electronic properties are discussed for the most stable geometry: we found interface states localized in the gap that may be a source of failure of electronic devices.
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ورودعنوان ژورنال:
- Physical review letters
دوره 89 15 شماره
صفحات -
تاریخ انتشار 2002