Magnetotransport and THz-Optical Investigations at Devices with HgTe Quantum Wells

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F10%3A10051609" target="_blank" >RIV/00216208:11320/10:10051609 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Magnetotransport and THz-Optical Investigations at Devices with HgTe Quantum Wells

Original language description

We investigated the magnetoconductivity and the Terahertz (THz) photo-conductivity of devices with HgTe quantum wells embedded in barrier layers of HgCdTe. For the photoconductivity measurements, a THz laser system (p-Ge-Laser) with tunable output in thewavelength range 120 um { lambda { 180 um was applied. The THz laser radiation is used in order to excite charge carriers over the Landau-gap. The response of the sample to the laser impulses is in 2D-samples in the quantum Hall (QH) regime measured inorder to receive data of the relaxation of the charge carriers. In this presentation we present photoconduction measurements of the HgTe-quantum well in Hall bar, Corbino as well as combined Corbino-Hall bar geometry in the QH-regime. The material systemHgTe/HgCdTe is characterized by a small effective mass compared to GaAs and accordingly smaller magnetic fields below 2 T for operation for the appropriate cyclotron energy.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BM - Solid-state physics and magnetism

OECD FORD branch

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Project

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Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2010

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Low Temperature Physics

ISSN

0022-2291

e-ISSN

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Volume of the periodical

159

Issue of the periodical within the volume

1-2

Country of publishing house

US - UNITED STATES

Number of pages

5

Pages from-to

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UT code for WoS article

000275415400045

EID of the result in the Scopus database

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