Terahertz response of CdTe/Cd1-xMgxTe modulation-doped multiple quantum wells

被引：0

作者：

Lusakowski, Jerzy ^{[1
,2
]}

Fraczak, Andrzej ^{[1
]}

Grymuza, Mikolaj ^{[1
]}

Imos, Eryk ^{[1
]}

Siemaszko, Adam

Solarska, Wiktoria ^{[1
]}

Woyciechowska, Aniela ^{[1
]}

Zaremba, Maciej ^{[1
]}

Zdunek, Rafal ^{[1
]}

Karpierz, Krzysztof ^{[1
]}

Adamus, Zbigniew ^{[3
,4
]}

Slupinski, Tomasz ^{[3
,4
]}

Wojtowicz, Tomasz ^{[3
]}

机构：

[1] Warsaw Univ, Fac Phys, Inst Expt Phys, Pasteura 5, PL-02 093 Warsaw, Poland

[2] Polish Acad Sci, Inst High Pressure Phys, CENTERA Labs, Ul Sokolowska 29-37, PL-01142 Warsaw, Poland

[3] Polish Acad Sci, Int Res Ctr MagTop, Inst Phys, Aleja Lotnikow 32-46, PL-02668 Warsaw, Poland

[4] Polish Acad Sci, Inst Phys, Aleja Lotnikow 32-46, PL-02668 Warsaw, Poland

来源：

OPTO-ELECTRONICS REVIEW | 2023年 / 31卷 / 02期

关键词：

Terahertz spectroscopy; Shubnikov-de Haas oscillations; modulation-doped multiple CdTe-based quantum wells; GAAS; PHOTOCONDUCTIVITY; ELECTRONS;

D O I：

10.24425/opelre.2023.144600

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：

Terahertz (THz) transmission, photoresistance, and electrical conductivity experiments were carried out at 4.2 K on a sample with modulation-doped CdTe/Cd1-xMgxTe multiple quantum wells. The measurements were carried out as a function of a magnetic field B up to 9 T and a radiation frequency between 0.1 and 0.66 THz. A broad minimum in the transmission curve was observed at magnetic fields corresponding to the cyclotron resonance at given THz frequency which was followed at larger fields by an oscillatory signal, periodic in B-1. Shubnikov-de Haas oscillations were observed in magnetoconductivity and in photoresistance. Each of these experimental signals revealed the same electron concentration equal to (1.01 +/- 0.03).10(12) cm(-2). THz spectroscopy results are compared with data obtained on a single quantum well and are discussed from the point of view of using such multiple quantum wells as THz optical elements.

引用

页数：5

共 27 条

[1] MICROWAVE MODULATION OF EXCITON LUMINESCENCE IN GAAS/ALXGA1-XAS QUANTUM-WELLS [J].