Charge order and crystal structure below the first-order "metal-insulator" transition in Yb4As3

Urs Staub, B. D. Patterson, C. Schulze-Briese, F. Fauth, M. Shi, L. Soderholm, G. B.M. Vaughan, E. Dooryhee, J. O. Cross, A. Ochiai

Research output: Contribution to journalConference articlepeer-review

3 Citations (Scopus)

Abstract

Resonant X-ray diffraction results on polycrystalline and single crystal Yb4As3 are reported. The strong resonant enhancement of particular superlattice reflections at temperatures below the first-order phase transition gives direct evidence of one-dimensional charge order. Similar evidence is obtained from the energy dependence of powder diffraction reflections. The quantitative determination of the charge ordering, which does not follow the structural distortion, has direct impact on models describing the unusual electronic and magnetic properties of this material.

Original languageEnglish
Pages (from-to)284-288
Number of pages5
JournalPhysica B: Condensed Matter
Volume318
Issue number4
DOIs
Publication statusPublished - 2002 Jun
Externally publishedYes
EventProceedings of the 6th Patras University Eurovonference - Patras, Greece
Duration: 2001 Sep 212001 Sep 25

Keywords

  • Charge ordering
  • Metal-insulator transition
  • Resonant X-ray diffraction

ASJC Scopus subject areas

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

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