Structural, electrical and magnetic characterization of the double perovskites Sr 2 CrMO 6 (M = Mo, W): B′ 4d-5d system

T. S. Chan, R. S. Liu, G. Y. Guo, Shu-Fen Hu, J. G. Lin, J. F. Lee, L. Y. Jang, C. R. Chang, C. Y. Huang

Research output: Contribution to journalArticle

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Abstract

We report on the preparation and characterization of the variation of B′-site transition metal in Sr 2 CrMO 6 (M = Mo, W) with double perovskites structure. The magnetic susceptibility shows that Sr 2 CrMoO 6 and Sr 2 CrWO 6 are antiferromagnets with T N = 40 and 30 K at H = 1 T, respectively. In addition, a large magnetoresistance ratio (MR) of ∼ 38% (H = 3 T) at 5 K was observed in the Sr 2 CrWO 6 compound. However, the Sr 2 CrMoO 6 compound does not show any significant MR even at high fields (MR ∼ 4%; H = 3 T and 5 K). The measured O K-edge X-ray absorption is in agreement with the calculated O p-density of states for both compounds.

Original languageEnglish
Pages (from-to)531-535
Number of pages5
JournalSolid State Communications
Volume131
Issue number8
DOIs
Publication statusPublished - 2004 Aug 1

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Magnetoresistance
perovskites
transition metals
magnetic permeability
preparation
x rays
X ray absorption
Magnetic susceptibility
Transition metals

Keywords

  • A. Magnetically ordered materials
  • D. Magnetoresistance
  • E. X-ray spectroscopies

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry

Cite this

Structural, electrical and magnetic characterization of the double perovskites Sr 2 CrMO 6 (M = Mo, W) : B′ 4d-5d system. / Chan, T. S.; Liu, R. S.; Guo, G. Y.; Hu, Shu-Fen; Lin, J. G.; Lee, J. F.; Jang, L. Y.; Chang, C. R.; Huang, C. Y.

In: Solid State Communications, Vol. 131, No. 8, 01.08.2004, p. 531-535.

Research output: Contribution to journalArticle

Chan, T. S. ; Liu, R. S. ; Guo, G. Y. ; Hu, Shu-Fen ; Lin, J. G. ; Lee, J. F. ; Jang, L. Y. ; Chang, C. R. ; Huang, C. Y. / Structural, electrical and magnetic characterization of the double perovskites Sr 2 CrMO 6 (M = Mo, W) : B′ 4d-5d system. In: Solid State Communications. 2004 ; Vol. 131, No. 8. pp. 531-535.
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T2 - B′ 4d-5d system

AU - Chan, T. S.

AU - Liu, R. S.

AU - Guo, G. Y.

AU - Hu, Shu-Fen

AU - Lin, J. G.

AU - Lee, J. F.

AU - Jang, L. Y.

AU - Chang, C. R.

AU - Huang, C. Y.

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N2 - We report on the preparation and characterization of the variation of B′-site transition metal in Sr 2 CrMO 6 (M = Mo, W) with double perovskites structure. The magnetic susceptibility shows that Sr 2 CrMoO 6 and Sr 2 CrWO 6 are antiferromagnets with T N = 40 and 30 K at H = 1 T, respectively. In addition, a large magnetoresistance ratio (MR) of ∼ 38% (H = 3 T) at 5 K was observed in the Sr 2 CrWO 6 compound. However, the Sr 2 CrMoO 6 compound does not show any significant MR even at high fields (MR ∼ 4%; H = 3 T and 5 K). The measured O K-edge X-ray absorption is in agreement with the calculated O p-density of states for both compounds.

AB - We report on the preparation and characterization of the variation of B′-site transition metal in Sr 2 CrMO 6 (M = Mo, W) with double perovskites structure. The magnetic susceptibility shows that Sr 2 CrMoO 6 and Sr 2 CrWO 6 are antiferromagnets with T N = 40 and 30 K at H = 1 T, respectively. In addition, a large magnetoresistance ratio (MR) of ∼ 38% (H = 3 T) at 5 K was observed in the Sr 2 CrWO 6 compound. However, the Sr 2 CrMoO 6 compound does not show any significant MR even at high fields (MR ∼ 4%; H = 3 T and 5 K). The measured O K-edge X-ray absorption is in agreement with the calculated O p-density of states for both compounds.

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