Inverted band structure of type-III HgTe/Hg1-xCdxTe superlattices and its temperature dependence -: art. no. 035202

被引：13

作者：

Becker, CR ^{[1
]}

Latussek, V ^{[1
]}

Landwehr, G ^{[1
]}

Molenkamp, LW ^{[1
]}

机构：

[1] Univ Wurzburg, Inst Phys, D-97074 Wurzburg, Germany

来源：

PHYSICAL REVIEW B | 2003年 / 68卷 / 03期

关键词：

D O I：

10.1103/PhysRevB.68.035202

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Intersubband transitions in (001)- and (112)B-orientated HgTe/Hg1-xCdxTe superlattices with an inverted band structure have been investigated in order to determine their band structure. The results are compared with k-p calculations in the envelope function approximation using the full 8X8 Kane Hamiltonian. Up to six intersubband transitions and their temperature dependences have been observed. Three transitions display a positive dependence on temperature and the remaining three a negative dependence. Agreement with theory for all observed transitions and both orientations is good. Due to the close proximity of the first conduction subband and the Fermi energy, the influence of the charge carriers must be taken into account.

引用

页数：7

共 33 条

[1] THE OPTICAL-ABSORPTION COEFFICIENT OF HGTE-CDTE SUPERLATTICES - THEORY AND EXPERIMENT [J].