典型文献
A theoretical investigation of glide dislocations in BN/AlN heterojunctions
文献摘要:
Glide dislocations with periodic pentagon-heptagon pairs are investigated within the theory of one-dimensional misfit dislocations in the framework of an improved Peierls-Nabarro(P-N)equation in which the lattice discreteness is fully considered.We find an approximate solution to handle misfit dislocations,where the second-order derivative appears in the improved P-N equation.This result is practical for periodic glide dislocations with narrow width,and those in the BN/AlN heterojunction are studied.The structure of the misfit dislocations and adhesion work are obtained explicitly and verified by first-principles calculations.Compared with shuffle dislocations,the compression force in the tangential direction of glide dislocations has a greater impact on the normal direction,and the contributions of the normal displacement to the interfacial energy cannot simply be ignored.
文献关键词:
中图分类号:
作者姓名:
Shujun Zhang
作者机构:
Department of Physics,Chongqing Three Gorges University,Wanzhou 404100,China
文献出处:
引用格式:
[1]Shujun Zhang-.A theoretical investigation of glide dislocations in BN/AlN heterojunctions)[J].中国物理B(英文版),2022(11):455-462
A类:
heptagon,Peierls,Nabarro
B类:
theoretical,investigation,glide,dislocations,BN,AlN,heterojunctions,Glide,periodic,pentagon,pairs,investigated,within,theory,one,dimensional,misfit,framework,improved,equation,which,lattice,discreteness,fully,considered,We,find,approximate,solution,handle,where,second,order,derivative,appears,This,result,practical,narrow,width,those,studied,structure,adhesion,obtained,explicitly,verified,by,first,principles,calculations,Compared,shuffle,compression,force,tangential,direction,has,greater,impact,normal,contributions,displacement,interfacial,energy,cannot,simply,be,ignored
AB值:
0.56856
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