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New magnetic semiconductor sulfospinels with cobalt
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Paper Abstract

We studied magnetic and electric properties new magnetic semiconductor CuCr1.5Sb0.5S4 and compounds with Co. All compounds are characteristic for antiferromagnetics. A giant negative magnetoresictance (for the compound with x=0.25 -16% in a magnetic field of 27 kOe, with x=0.5 -24% in a field of 30 kOe ) has been fond in the new magnetic semiconductors xCoCr2S4 - (1-x)CuCr1.5Sb0.5>S4, (x=0.25;0.5). Magnetoresistance in practically absent in CuCr1.5Sb0.5S4 and does not exceed 2% in CoCr2S4. The giant magnetoresistance and the positive value of θ are evidence for the existence of afmons in compound with Co.

Paper Details

Date Published: 4 November 2003
PDF: 6 pages
Proc. SPIE 5188, Advanced Characterization Techniques for Optics, Semiconductors, and Nanotechnologies, (4 November 2003); doi: 10.1117/12.504044
Show Author Affiliations
Dilaram Abdullaevna Saifullaeva, Samarkand State Univ. (Uzbekistan)
Shahlo Fazilovna Solieva, Samarkand State Univ. (Uzbekistan)

Published in SPIE Proceedings Vol. 5188:
Advanced Characterization Techniques for Optics, Semiconductors, and Nanotechnologies
Angela Duparre; Bhanwar Singh, Editor(s)

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