Computer Simulation of Electron Spin Resonance Spectra of Ge25S75and Ge30S70 Bulk Glasses

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Title:Computer Simulation of Electron Spin Resonance Spectra of Ge25S75and Ge30S70 Bulk Glasses
Creators:
Černošek, Zdeněk
Liška, Marek
Pelikán, Peter
Černošková, Eva
Valko, Marián
Frumar, Miloslav
Journal or Publication Title:
Collection of Czechoslovak Chemical Communications, 62, 11, pp. 1721-1729
Uncontrolled Keywords:Computer simulation, Electron spin resonance, EPR spectroscopy, ESR, Ge-S glasses, Paramagnetic defects

Abstract

The electron spin resonance (ESR) spectra of bulk glasses of the chemical composition Ge<sub>25</sub>S<sub>75</sub> and Ge<sub>30</sub>S<sub>70</sub> were measured at liquid nitrogen temperature and subjected to computerized separation. The complex ESR spectra of both glasses were found to represent a superposition of three paramagnetic defect spectra, two with orthorhombic tensors <FONT FACE="Helvetica,Arial"><i><strong>g</strong></i></FONT> and one with the axial tensor <FONT FACE="Helvetica,Arial"><i><strong>g</strong></i></FONT>. The former two paramagnetic centers can be related to a two-atomic defect of the sulfur-sulfur type, the latter to a germanium-sulfur defect. The experimental results are in a good agreement with the non-dangling bond model of paramagnetic defects in Ge-S glasses.

Title:Computer Simulation of Electron Spin Resonance Spectra of Ge25S75and Ge30S70 Bulk Glasses
Creators:
Černošek, Zdeněk
Liška, Marek
Pelikán, Peter
Černošková, Eva
Valko, Marián
Frumar, Miloslav
Uncontrolled Keywords:Computer simulation, Electron spin resonance, EPR spectroscopy, ESR, Ge-S glasses, Paramagnetic defects
Divisions:Life and Chemical Sciences > Institute of Organic Chemistry and Biochemistry > Collection of Czechoslovak Chemical Communications
Journal or Publication Title:Collection of Czechoslovak Chemical Communications
Volume:62
Number:11
Page Range:pp. 1721-1729
ISSN:0010-0765
E-ISSN:1212-6950
Publisher:Institute of Organic Chemistry and Biochemistry
Related URLs:
URLURL Type
http://dx.doi.org/10.1135/cccc19971721UNSPECIFIED
ID Code:1246
Item Type:Article
Deposited On:06 Feb 2009 17:07
Last Modified:06 Feb 2009 16:07

Citation

Černošek, Zdeněk; Liška, Marek; Pelikán, Peter; Černošková, Eva; Valko, Marián; Frumar, Miloslav (1997) Computer Simulation of Electron Spin Resonance Spectra of Ge25S75and Ge30S70 Bulk Glasses. Collection of Czechoslovak Chemical Communications, 62 (11). pp. 1721-1729. ISSN 0010-0765

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