New magnetic semiconductor sulfospinels with cobalt

Dilaram Abdullaevna Saifullaeva; Shahlo Fazilovna Solieva

doi:10.1117/12.504044

4 November 2003 New magnetic semiconductor sulfospinels with cobalt

Dilaram Abdullaevna Saifullaeva, Shahlo Fazilovna Solieva

Proceedings Volume 5188, Advanced Characterization Techniques for Optics, Semiconductors, and Nanotechnologies; (2003) https://doi.org/10.1117/12.504044
Event: Optical Science and Technology, SPIE's 48th Annual Meeting, 2003, San Diego, California, United States

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)CuCr_1.5Sb_0.5>S₄, (x=0.25;0.5). Magnetoresistance in practically absent in CuCr_1.5Sb_0.5S₄ 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.

Citation Download Citation

Dilaram Abdullaevna Saifullaeva and Shahlo Fazilovna Solieva "New magnetic semiconductor sulfospinels with cobalt", Proc. SPIE 5188, Advanced Characterization Techniques for Optics, Semiconductors, and Nanotechnologies, (4 November 2003); https://doi.org/10.1117/12.504044

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