MAGNETOOPTICS AND VALENCE-BAND DISCONTINUITY IN A HGTE-HG1-XCDXTE SUPERLATTICE

被引:24
作者
VONTRUCHSESS, M [1 ]
LATUSSEK, V [1 ]
GOSCHENHOFER, F [1 ]
BECKER, CR [1 ]
LANDWEHR, G [1 ]
BATKE, E [1 ]
SIZMANN, R [1 ]
HELGESEN, P [1 ]
机构
[1] NORWEGIAN DEF RES ESTAB,DIV ELECTR,N-2007 KJELLER,NORWAY
来源
PHYSICAL REVIEW B | 1995年 / 51卷 / 24期
关键词
D O I
10.1103/PhysRevB.51.17618
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We report here on infrared magneto-optical studies of band gaps and electron cyclotron resonances of a narrow-gap HgTe-Hg1-xCdxTe superlattice. The experimental electron effective mass at the conduction-band edge and four different interband transition energies are compared to the prediction of a 8×8 kp band-structure calculation in order to determine the valence-band discontinuity between HgTe and CdTe. At liquid-helium temperatures an excellent description of the experiment is obtained with a band offset of 550 meV. Agreement between experiment and theory is not satisfactory with the valence-band offset of 350 meV as deduced from x-ray and ultraviolet photoelectron spectroscopy. © 1995 The American Physical Society.
引用
收藏
页码:17618 / 17623
页数:6
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