Investigation of Lattice Contraction in Mn₃XN(X=Zn, Cu, Sn)

Abstract:

The Mn3XN(X=Zn, Cu, Sn) compounds and their solid solutions with anti-perovskite structure were prepared by solid state reaction. Their magnetic transition and simultaneous abnormal thermal expansion behaviors were studied by SQUID and variable temperature X-ray diffraction. The lattice contraction was found in Mn3Cu0.5Sn0.5N and Mn3Zn0.5Sn0.5N during the magnetic transition process, however not in pure Mn3XN(X=Zn, Cu, Sn). The mechanism is discussed, combined with the different doping effects. It seems that the lattice contraction behavior is sensitive to the number of valence electrons at the X site in Mn3XN series.

• Periodical: Materials Science Forum (Volumes 638-642)
• Pages: 2195-2200
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.638-642.2195
• Online since: January 2010
• Authors: Cong Wang, Ying Sun, Yong Chun Wen, Li Hua Chu, Man Nie
• Keywords: Lattice Contraction, Magnetic Transition, Mn₃XN

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