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The Observations of Paramagnetic Centers in Tellurite Glasses

Published online by Cambridge University Press:  16 February 2011

J.D. Prohaska ,
J. Li ,
S. Kannan ,
E. Snitzer ,
J.S. Wang  and
R.H. Bartram
J.D. Prohaska
Affiliation:
Dept. of Ceramics Science and Engineering; Rutgers University, Piscataway, NJ
J. Li
Affiliation:
Dept. of Ceramics Science and Engineering; Rutgers University, Piscataway, NJ
S. Kannan
Affiliation:
Dept. of Ceramics Science and Engineering; Rutgers University, Piscataway, NJ
E. Snitzer
Affiliation:
Dept. of Ceramics Science and Engineering; Rutgers University, Piscataway, NJ
J.S. Wang
Affiliation:
AT&T Bell Laboratories, Holmdel, NJ
R.H. Bartram
Affiliation:
Dept. of Physics and Institute of Materials Science; University of Connecticut, Storrs, CT
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Abstract

This is the first report of ESR observations of three distinct paramagnetic centers in TeO29 glasses. One center is intrinsic to the glass and the other two are induced by KrFexcimer-laser radiation. The intrinsic center with a broad ESR spectrum is tentatively identified as an oxygen-associated hole center. One radiation-induced center fades slowly at room temperature; its proposed structure is that of an electron trapped in a diffuse orbital associated with a modifier ion. The other radiation-induced center is stable at room temperature and corresponds to the Vo· center observed in crystalline paratellurite.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 373: Symposium Y – Microstructure of Irradiated Materials , 1994 , 443
Copyright
Copyright © Materials Research Society 1995

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References

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