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Nmr in Liquid Semiconducting Sex Te1-x

Published online by Cambridge University Press:  15 February 2011

R. Dupree ,
D.J. Kirby  and
J.A. Gardner
R. Dupree
Affiliation:
Department of Physics, University of Warwick, Coventry CV4 7AL, U.K.
D.J. Kirby
Affiliation:
Department of Physics, University of Warwick, Coventry CV4 7AL, U.K.
J.A. Gardner
Affiliation:
University of Warwick and Department of Physics, Oregon State University, Corvallis, Oregon 97331, U.S.A.
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Abstract

For x > 0.2, liquid SexTel-x alloys are semiconducting near the liquidus and have strongly temperature–dependent magnetic susceptibilities. We have studied the electronic paramagnetic centers by measuring their influence on the nuclear magnetic resonance shift and relaxation times of 77 Se and 125 Te in liquid Se .5Te.5. We find that the electronic centers are highly localized, their average hyperfine contact interaction with 125Te is three times that with 77Se, and the electronic spin correlation time is of order 1 psec at 350°C and decreases with rising T.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 3: Symposium – Nuclear and Electron Resonance Spectroscopies Applied to Materials Science , 1980 , 365
Copyright
Copyright © Materials Research Society 1981

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References

REFERENCES

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