Experimental observation of spin-dependent electron many-body effects in CdTe
Identifikátory výsledku
Kód výsledku v 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>
Výsledek na webu
<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>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Experimental observation of spin-dependent electron many-body effects in CdTe
Popis výsledku v původním jazyce
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
Název v anglickém jazyce
Experimental observation of spin-dependent electron many-body effects in CdTe
Popis výsledku anglicky
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
Klasifikace
Druh
J<sub>x</sub> - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
CEP obor
BH - Optika, masery a lasery
OECD FORD obor
—
Návaznosti výsledku
Projekt
<a href="/cs/project/GAP204%2F12%2F0853" target="_blank" >GAP204/12/0853: Ultrarychlá optická manipulace s magnetickým uspořádáním v polovodičích</a><br>
Návaznosti
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Ostatní
Rok uplatnění
2014
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Journal of Applied Physics
ISSN
0021-8979
e-ISSN
—
Svazek periodika
116
Číslo periodika v rámci svazku
5
Stát vydavatele periodika
US - Spojené státy americké
Počet stran výsledku
8
Strana od-do
—
Kód UT WoS článku
000341178900049
EID výsledku v databázi Scopus
—