Invar-like Behavior of Antiperovskite Mn3+xNi1-xN Compounds

Published

March 5, 2015

Author(s)

Sihao Deng, Ying Sun, Hui Wu, Qingzhen Huang, Jun Yan, Kewen Shi, Muhammad Imran Malik, Huiqing Lu, Lei Wang, Rongjin Huang, Laifeng Li, Cong Wang

Abstract

The antiperovskite Mn_3+xNi_1-xN compounds have been synthesized and characterized by a variety of experimental techniques. After Mn doping at Ni site, both ferromagnetic characteristics and Invar-like effect were observed in the antiferromagnetic host material. The observed Invar-like effect were observed in the antiferromagnetic host material. The observed Invar-like behavior was assumed to be related to the characteristic magnetic structure induced by the doping stabilizes the special Γ^5g antiferromagnetic phase with strong spin-lattice coupling that can be tuned to achieve Invar-like behavior. The magnetovolume effect (MVE)and significant correlation between spin and lattice were confirmed for Γ^5g magnetic phase by the first-principles calculations. Moreover, Mn-3d electron were revealed to be the key factor for MVE from the calculations. Our study presents a new mechanism to precisely control the zero thermal expansion (ZTE) of a single compound by getting the specialΓ^5g magnetic phase of Mn atoms.

Citation

Chemistry of Materials

Volume

27

Pub Type

Journals

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Keywords

Invar-like behavior, ¿5g magnetic phase, Magnetovolume effect, Mn3NiN

Citation

Deng, S. , Sun, Y. , Wu, H. , Huang, Q. , Yan, J. , Shi, K. , Malik, M. , Lu, H. , Wang, L. , Huang, R. , Li, L. and Wang, C. (2015), Invar-like Behavior of Antiperovskite Mn_3+xNi_1-xN Compounds, Chemistry of Materials, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=918159 (Accessed October 5, 2024)