A modulated structure derived from the XA-type Mn2RuSn Heusler compound

Xing Zhong Li, Wen Yong Zhang, Ralph Skomski, David Sellmyer

Research output: Contribution to journalArticlepeer-review

Abstract

A modulated structure derived from the inverse Heusler phase (the XA-type and the disordered variant L21B-type) has been observed in rapidly quenched Mn2RuSn ribbons. The powder X-ray diffraction pattern of the quenched ribbons can be indexed as an L21B-type structure. Electron diffraction patterns of the new structure mostly resemble those of the XA-type (and the disordered variant L21B-type) structure and additional reflections with denser spacing indicate a long periodicity. Orthogonal domains of the modulated structure were revealed by a selected-area electron diffraction pattern and the corresponding dark-field transmission electron microscopy images. The structure was further studied by the crystallographic analysis of high-resolution transmission electron microscopy images. A model for the modulated structure has been proposed to interpret the experimental results.

Original languageEnglish (US)
Pages (from-to)485-489
Number of pages5
JournalActa Crystallographica Section B: Structural Science, Crystal Engineering and Materials
Volume78
Issue numberPt 3 Pt 2
DOIs
StatePublished - Jun 1 2022

Keywords

  • Heusler compounds
  • Landyne software
  • Mn2RuSn
  • modulated structure
  • TEM

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Metals and Alloys
  • Materials Chemistry

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