期刊
JOURNAL OF APPLIED PHYSICS
卷 129, 期 20, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/5.0047972
关键词
-
资金
- National Natural Science Foundation of China (NNSFC) [11874093]
An improved theoretical self-consistent method is presented for studying the heterojunction, which treats the period in the gamma-energy function as a parameter to be determined in a self-consistent way. Applied to the AlN/BN heterojunction, the period determined from the minimum-energy principle is found to be very close to the previously given value.
As an improvement of the conventional misfit dislocation theory, a theoretical self-consistent method is presented for a study of the heterojunction. Although the interaction between two adhesive crystals is still effectively described by the gamma-energy function, however, the period appearing in the gamma-energy function is no longer predetermined as is usually done but treated as a parameter needs to be determined in a self-consistent way. Because the period is actually the Burgers vector of the misfit dislocation, the self-consistent method is significant for the dislocation- based heterojunction theory. As an illustration, the theory is applied to the heterojunction of two-dimensional materials AlN and BN. It is found that for the AlN/BN heterojunction, the period determined from the minimum-energy principle is very close to the value given previously. Published under an exclusive license by AIP Publishing.
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