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

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

doi:10.1107/S205252062200333X

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

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

Physics and Astronomy

Research output: Contribution to journal › Article › peer-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 language	English (US)
Pages (from-to)	485-489
Number of pages	5
Journal	Acta Crystallographica Section B: Structural Science, Crystal Engineering and Materials
Volume	78
Issue number	Pt 3 Pt 2
DOIs	https://doi.org/10.1107/S205252062200333X
State	Published - Jun 1 2022

Keywords

Heusler compounds
Landyne software
Mn2RuSn
TEM
modulated structure

ASJC Scopus subject areas

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

Access to Document

10.1107/S205252062200333X

Cite this

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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.",

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