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

Research output: Contribution to journalArticle

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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sulfides
chromium
ions
magnetic properties
magnetization
electrical resistivity
temperature

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Vaqueiro, P., Powell, A. V., Coldea, A. I., Steer, C. A., Marshall, I. M., Blundell, S. 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].
Vaqueiro, Paz ; Powell, A. V. ; Coldea, A. I. ; Steer, C. A. ; Marshall, I. M. ; Blundell, S. J. ; Singleton, J. ; Ohtani, T. / Colossal magnetoresistance in the layered chromium sulfide Cr2S3-x (x=0.08). In: Physical Review B: Condensed Matter and Materials Physics. 2001 ; Vol. 64, No. 13. pp. 1324021-1324024.
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Vaqueiro, P, Powell, AV, Coldea, AI, Steer, CA, Marshall, IM, Blundell, SJ, 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, vol. 64, no. 13, 132402, pp. 1324021-1324024.

Colossal magnetoresistance in the layered chromium sulfide Cr2S3-x (x=0.08). / Vaqueiro, Paz; Powell, A. V.; Coldea, A. I.; Steer, C. A.; Marshall, I. M.; Blundell, S. J.; Singleton, J.; Ohtani, T.

In: Physical Review B: Condensed Matter and Materials Physics, Vol. 64, No. 13, 132402, 01.10.2001, p. 1324021-1324024.

Research output: Contribution to journalArticle

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AU - Vaqueiro, Paz

AU - Powell, A. V.

AU - Coldea, A. I.

AU - Steer, C. A.

AU - Marshall, I. M.

AU - Blundell, S. J.

AU - Singleton, J.

AU - Ohtani, T.

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Y1 - 2001/10/1

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AB - 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.

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JO - Physical Review B: Condensed Matter and Materials Physics

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Vaqueiro P, Powell AV, Coldea AI, Steer CA, Marshall IM, Blundell SJ et al. Colossal magnetoresistance in the layered chromium sulfide Cr2S3-x (x=0.08). Physical Review B: Condensed Matter and Materials Physics. 2001 Oct 1;64(13):1324021-1324024. 132402.