Polarized neutron investigation in the mixed-valence compound Sm3Te4

J. X. Boucherle, F. Givord, J. Schweizer, A. Gukasov, J. M. Mignot, E. Lelièvre-Berna, H. Aoki, A. Ochiai

研究成果: Conference article査読

5 被引用数 (Scopus)

抄録

Cubic Sm3Te4 can be characterized as a semiconducting, inhomogeneous mixed-valence system. No evidence of charge ordering is found at low temperature, indicating that Sm2+ and Sm3+ ions are randomly distributed on one crystallographic position. The magnetization density of a Sm3Te4 single crystal was measured at 1.5 K using polarized neutrons, with a magnetic field applied along [1 1̄ 0]. As the Sm3Te4 structure is not centric, the measured flipping ratios have been directly processed by the maximum entropy method and by a least-squares refinement. The two approaches are in agreement: under the action of the magnetic field, the Sm site splits into two subsites, with very different induced magnetization densities. Two possible explanations are proposed.

本文言語English
ページ(範囲)37-40
ページ数4
ジャーナルPhysica B: Condensed Matter
267-268
DOI
出版ステータスPublished - 1999 6月
外部発表はい
イベントProceedings of the 1998 2nd International Workshop on Polarised Neutrons for Condensed Matter Investigations, PNCMI '98 - Grenoble
継続期間: 1998 9月 211998 9月 23

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • 電子工学および電気工学

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