Magnetic structure and local lattice distortion in giant negative thermal expansion material Mn3Cu1-xGexN

S. Iikubo, K. Kodama, K. Takenaka, H. Takagi, S. Shamoto

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4 Citations (Scopus)

Abstract

Magnetic and local structures in an antiperovskite system, Mn 3Cu1-xGexN, with a giant negative thermal expansion have been studied by neutron powder diffraction measurement. We discuss (1) an importance of an averaged cubic crystal structure and a ΓG5g antiferromagnetic spin structure for the large magneto-volume effect (MVE) in this itinerant electron system, (2) an unique role of a local lattice distortion well described by the low temperature tetragonal structure of Mn3GeN for the broadening of MVE.

Original languageEnglish
Article number012014
JournalJournal of Physics: Conference Series
Volume251
Issue number1
DOIs
Publication statusPublished - 2010
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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