Polarized neutron investigation in the mixed-valence compound Sm3Te4

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

Research output: Contribution to journalConference article

4 Citations (Scopus)


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.

Original languageEnglish
Pages (from-to)37-40
Number of pages4
JournalPhysica B: Condensed Matter
Publication statusPublished - 1999 Jun
Externally publishedYes
EventProceedings of the 1998 2nd International Workshop on Polarised Neutrons for Condensed Matter Investigations, PNCMI '98 - Grenoble
Duration: 1998 Sep 211998 Sep 23

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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    Boucherle, J. X., Givord, F., Schweizer, J., Gukasov, A., Mignot, J. M., Lelièvre-Berna, E., Aoki, H., & Ochiai, A. (1999). Polarized neutron investigation in the mixed-valence compound Sm3Te4. Physica B: Condensed Matter, 267-268, 37-40. https://doi.org/10.1016/S0921-4526(99)00026-5