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

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...

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Những tác giả chính: Vaqueiro, P, Powell, A, Coldea, A, Steer, C, Marshall, I, Blundell, S, Singleton, J, Ohtani, T
Định dạng: Journal article
Ngôn ngữ:English
Được phát hành: 2001
Miêu tả
Tóm tắt: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.