Published March 2018 | Version v1
Journal article Metadata-only

Phase separation and zero thermal expansion in antiperovskite Mn3Zn0.77Mn0.19N0.94: An in situ neutron diffraction investigation

Creators

  • 1. Fundamental Science on Nuclear Wastes and Environmental Safety Laboratory, Southwest University of Science and Technology, Mianyang 621010 (China)
  • 2. Center for Condensed Matter and Materials Physics, Department of Physics, Beihang University, Beijing 100191 (China)
  • 3. NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, MD 20899-6102 (United States)

Description

The antiperovskite Mn3Zn0.77Mn0.19N0.94 was investigated by in situ neutron powder diffraction (NPD) in the temperature region 5–300 K. Here, a noncollinear-antiferromagnetic/collinear-ferrimagnetic phase separation (PS) showing different lattice parameters was firstly revealed in antiperovskites. The NPD results prove that the noncollinear antiferromagnetic phase, even coexisting with the collinear ferrimagnetic phase, could be responsible for the zero thermal expansion behavior of Mn3Zn0.77Mn0.19N0.94 below 110 K. These findings suggest that Mn3ZnN based materials could open a new avenue for further exploring the noncollinear magnetic PS and correlated physical properties of antiperovskites.

Availability note (English)

Available from http://dx.doi.org/10.1016/j.scriptamat.2017.10.031

Additional details

Identifiers

DOI
10.1016/j.scriptamat.2017.10.031;
PII
S1359646217306279;

Publishing Information

Journal Title
Scripta Materialia
Journal Volume
146
Journal Page Range
p. 18-21
ISSN
1359-6462
CODEN
SCMAF7

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
50052944
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
ANTIFERROMAGNETISM; LATTICE PARAMETERS; MANGANESE; MATERIALS; NEUTRON DIFFRACTION; NITROGEN; PHYSICAL PROPERTIES; THERMAL EXPANSION; ZINC
Descriptors DEC
COHERENT SCATTERING; DIFFRACTION; ELEMENTS; EXPANSION; MAGNETISM; METALS; NONMETALS; SCATTERING; TRANSITION ELEMENTS

Optional Information

Copyright
Copyright (c) 2017 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.