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Photo-induced magnetic behavior in the amorphous spin-glass material Co3(SbTe3)2

Published online by Cambridge University Press:  03 March 2011

Biao Wu ,
Lianwei Ren ,
Charles J. O'Connor ,
Jinke Tang ,
Jin-Seung Jung ,
Jacques Ferré  and
Jean-Pierre Jamet
Biao Wu
Affiliation:
Department of Chemistry, University of New Orleans, New Orleans, Louisiana 70148
Lianwei Ren
Affiliation:
Department of Chemistry, University of New Orleans, New Orleans, Louisiana 70148
Charles J. O'Connor
Affiliation:
Department of Chemistry, University of New Orleans, New Orleans, Louisiana 70148
Jinke Tang
Affiliation:
Department of Physics, University of New Orleans, New Orleans, Louisiana 70148
Jin-Seung Jung
Affiliation:
Department of Chemistry, Kangnung National University, Kangnung 210–702, Korea
Jacques Ferré
Affiliation:
Laboratoire de Physique des Solides, Bâtiment 510, Université Paris-sud, 91405 Orsay, France
Jean-Pierre Jamet
Affiliation:
Laboratoire de Physique des Solides, Bâtiment 510, Université Paris-sud, 91405 Orsay, France
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Extract

A new ternary material Co3(SbTe3)2 was prepared by using a rapid precipitation metathesis reaction between the Zintl material K3SbTe3 and CoCl2 in aqueous solution. The dc specific resistivity of this material is in the region for metallic conductors (p = 2.75 × 10-3 Ω-cm). The dc magnetic susceptibility of Co3(SbTe3)2 is reported over a 2.2 K-300 K temperature region, and the material is characterized as a spin glass with a freezing temperature of about 5 K. Magnetization data are also reported as both thermal remanent magnetization and isothermal remanent magnetization as a function of magnetizing field and temperature. When cooled well below the glass freezing temperature, the frozen spin glass has been observed to exhibit photomagnetic effects consistent with a disruption of the spin-glass state caused by uv-radiation.

Type
Articles
Information
Journal of Materials Research , Volume 9 , Issue 4 , April 1994 , pp. 909 - 914
Copyright
Copyright © Materials Research Society 1994

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References

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