Experimental observation of spin-dependent electron many-body effects in CdTe

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F14%3A10285413" target="_blank" >RIV/00216208:11320/14:10285413 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1063/1.4892399" target="_blank" >http://dx.doi.org/10.1063/1.4892399</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1063/1.4892399" target="_blank" >10.1063/1.4892399</a>

Result language

angličtina

Original language name

Experimental observation of spin-dependent electron many-body effects in CdTe

Original language description

In semiconductors, the spin degree of freedom is usually disregarded in the theoretical treatment of electron many-body effects such as band-gap renormalization and screening of the Coulomb enhancement factor. Nevertheless, as was observed experimentallyin GaAs, not only the single-particle phase-space filling but also many-body effects are spin sensitive. In this paper, we report on time- and polarization-resolved differential transmission pump-probe measurements in CdTe, which has the same zincblendecrystal structure but different material parameters compared to that of GaAs. We show experimentally that at room temperature in CdTe-unlike in GaAs-the pump-induced decrease of transmission due to the band-gap renormalization can even exceed the transmission increase due to the phase-space filling, which enables to measure directly the spin-sensitivity of the band-gap renormalization. We also observed that the influence of the band-gap renormalization is more prominent at low temperatu

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

BH - Optics, masers and lasers

OECD FORD branch

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Project

<a href="/en/project/GAP204%2F12%2F0853" target="_blank" >GAP204/12/0853: Ultrafast optical manipulation of magnetic order in semiconductors</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2014

Confidentiality

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

Name of the periodical

Journal of Applied Physics

ISSN

0021-8979

e-ISSN

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Volume of the periodical

116

Issue of the periodical within the volume

5

Country of publishing house

US - UNITED STATES

Number of pages

8

Pages from-to

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UT code for WoS article

000341178900049

EID of the result in the Scopus database

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