Colossal magnetoresistance in the layered chromium sulfide Cr2S3-x (x=0.08)

Paz Vaqueiro, A. V. Powell, A. I. Coldea, C. A. Steer, I. M. Marshall, S. J. Blundell, J. Singleton, T. Ohtani

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Abstract

We report structural, magnetic, and magnetotransport properties of the two-dimensional chromium sulfide Cr2S2.92, which contains both Cr3+ and Cr2+ ions. Below its magnetic-ordering temperature (TN=118 K), Cr2S2.92 exhibits a weak spontaneous magnetization with a maximum around 90 K and a value of 0.013(4) µB per Cr ion at 5 K. The resistivity and magnetoresistance exhibit pronounced local maxima around TN (MR=48% in a field of 14 T). The magnetotransport properties are discussed in terms of magnetic-polaron formation.

Original languageEnglish
Article number132402
Pages (from-to)1324021-1324024
Number of pages4
JournalPhysical Review B: Condensed Matter and Materials Physics
Volume64
Issue number13
Publication statusPublished - 1 Oct 2001

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    Vaqueiro, P., Powell, A. V., Coldea, A. I., Steer, C. A., Marshall, I. M., Blundell, S. J., Singleton, J., & Ohtani, T. (2001). Colossal magnetoresistance in the layered chromium sulfide Cr2S3-x (x=0.08). Physical Review B: Condensed Matter and Materials Physics, 64(13), 1324021-1324024. [132402].