Cyclotron resonance and interband optical transitions in HgTe/CdTe(013) quantum well heterostructures

被引：46

作者：

Ikonnikov, A. V. ^{[1
]}

Zholudev, M. S. ^{[1
]}

Spirin, K. E. ^{[1
]}

Lastovkin, A. A. ^{[1
]}

Maremyanin, K. V. ^{[1
]}

Aleshkin, V. Ya ^{[1
]}

Gavrilenko, V. I. ^{[1
]}

Drachenko, O. ^{[2
,3
]}

Helm, M. ^{[2
,3
]}

Wosnitza, J. ^{[2
,3
]}

Goiran, M. ^{[4
]}

Mikhailov, N. N. ^{[5
]}

Dvoretskii, S. A. ^{[5
]}

Teppe, F. ^{[6
]}

Diakonova, N. ^{[6
]}

Consejo, C. ^{[6
]}

Chenaud, B. ^{[6
]}

Knap, W. ^{[6
]}

机构：

[1] Inst Phys Microstruct RAS, Nizhnii Novgorod 603950, Russia

[2] Forschungszentrum Dresden Rossendorf, Dresden High Magnet Field Lab, D-01314 Dresden, Germany

[3] Forschungszentrum Dresden Rossendorf, Inst Ion Beam Phys & Mat Res, D-01314 Dresden, Germany

[4] Univ Toulouse, Lab Natl Champs Magnet Intenses LNCMI T, CNRS, UPR 3228, F-31400 Toulouse, France

[5] Russian Acad Sci, Inst Semicond Phys, Siberian Branch, Novosibirsk 630090, Russia

[6] Univ Montpellier 2, LCC, UMR CNRS 5221, GIS TERALAB, F-34095 Montpellier, France

来源：

SEMICONDUCTOR SCIENCE AND TECHNOLOGY | 2011年 / 26卷 / 12期

关键词：

D O I：

10.1088/0268-1242/26/12/125011

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Cyclotron resonance spectra of 2D electrons in HgTe/CdxHg1-xTe (0 1 3) quantum well (QW) heterostructures with inverted band structure have been thoroughly studied in quasiclassical magnetic fields versus the electron concentration varied using the persistent photoconductivity effect. The cyclotron mass is shown to increase with QW width in contrast to QWs with normal band structure. The measured values of cyclotron mass are shown to be systematically less than those calculated using the 8 x 8 Kane model with conventional set of HgTe and CdTe material parameters. In quantizing pulsed magnetic fields (Landau level filling factor less than unity) up to 45 T, both intraband (CR) and interband magnetoabsorption have been studied at radiation wavelengths 14.8 and 11.4 mu m for the first time. The results obtained are compared with the allowed transition energies between Landau levels in the valence and conduction bands calculated within the same model, the calculated energies being again systematically less (by 3-14%) than the observed optical transition energies.

引用

页数：6

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