Topological Insulator: Surface Localized States

被引:0
作者
Ovchinnikov, Yu. N. [1 ,2 ]
机构
[1] Max Planck Inst Phys Komplexer Syst, D-01187 Dresden, Germany
[2] RAS, Landau Inst Theoret Phys, Chernogolovka 142432, Moscow District, Russia
关键词
Localization; Energy gap; Vortex in superconductors; Surface potential; Propagation in one directions;
D O I
10.1007/s10948-018-4827-0
中图分类号
O59 [应用物理学];
学科分类号
摘要
The possibility of formation of the localized states near the surface for the sample with small energy gap value in the bulk excitation spectrum is analysed. The existence of such a phenomenon is more realistic for narrow gap insulator with conic singularity in the excitation spectrum. Nevertheless, existence of such singularity is not sufficient for formation of surface localized states. Essential role is played by additional potential, which creates the surface.
引用
收藏
页码:1327 / 1331
页数:5
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