Temperature dependent behavior of localized and delocalized electrons in nitrogen-doped 6H SiC crystals as studied by electron spin resonance

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F16%3A00458956" target="_blank" >RIV/68378271:_____/16:00458956 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1063/1.4940739" target="_blank" >http://dx.doi.org/10.1063/1.4940739</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1063/1.4940739" target="_blank" >10.1063/1.4940739</a>

Result language
angličtina
Original language name
Temperature dependent behavior of localized and delocalized electrons in nitrogen-doped 6H SiC crystals as studied by electron spin resonance
Original language description
We have studied the temperature behavior of the electron spin resonance (ESR) spectra of nitrogen (N) donors in n-type 6H SiC crystals grown by Lely and sublimation sandwich methods (SSM) with donor concentration of 1017cm-3 at T60–150 K. A broad signal in the ESR spectrum was observed at T 80K with Lorentzian lineshape and gjj2.0043(3), g?2.0030(3), which was previously assigned in the literature to the N donors in the 1s(E) excited state. Based on the analysis of the ESR lineshape, linewidth and g-tensor we attribute this signal to the conduction electrons (CE). The emergence of the CE ESR signal at T>80K was explained by the ionization of electrons from the 1s(A1) ground and 1s(E) excited states of N donors to the conduction band while the observed reduction of the hyperfine (hf) splitting for the Nk1,k2 donors with the temperature increase is attributed to the motional narrowing effect of the hf splitting.n
Czech name
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Czech description
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Type
J<sub>x</sub> - 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
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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