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Magnetic Structures and Magneto-volume Effects in Mn3Cu1-xGexN

Published online by Cambridge University Press:  01 February 2011

Satoshi Iikubo
Affiliation:
iikubo.satoshi@jaea.go.jp, Japan Atomic Energy Agency, Quantum Beam Science Directorate, Funaishikawa, Tokai, Naka, ibaraki, 319-1111, Japan, +81-29-282-6474, +81-29-284-3813
Katsuaki Kodama
Affiliation:
kodama.katsuaki@jaea.go.jp, Japan Atomic Energy Agency, Quantum Beam Science Directorate, Tokai, Ibaraki, N/A, Japan
Koshi Takenaka
Affiliation:
takenaka@nuap.nagoya-u.ac.jp, RIKEN, The Institute of Physical and Chemical Research, Wako, Saitama, N/A, Japan
Hidenori Takagi
Affiliation:
h-takagi@riken.jp, RIKEN, The Institute of Physical and Chemical Research, Wako, Saitama, N/A, Japan
Shinichi Shamoto
Affiliation:
shamoto.shinichi@jaea.go.jp, Japan Atomic Energy Agency, Quantum Beam Science Directorate, Tokai, Ibaraki, N/A, Japan
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Abstract

Magnetic structures in an antiperovskite system, Mn3Cu1-xGexN, with a large magneto-volume effect above x =0.15 have been studied by neutron powder diffraction measurement. The present neutron study revealed that not only a cubic crystal structure but also a Γ5g antiferromagnetic spin structure are key ingredients of the large magneto-volume effect in this itinerant electron system.

Type
Research Article
Copyright
Copyright © Materials Research Society 2008

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