Baromagnetic Effect in Antiperovskite Mn3 Ga0.95 N0.94 by Neutron Powder Diffraction Analysis.

Shi, Kewen; Sun, Ying; Yan, Jun; Deng, Sihao; Wang, Lei; Wu, Hui; Hu, Pengwei; Lu, Huiqing et al. · Adv Mater · 2016

basic_science · Level V

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Abstract

A baromagnetic effect in a novel tetragonal magnetic structure is introduced by vacancies in Mn3 Ga0.95 N0.94 , due to the change of the Mn-Mn distance and their spin re-orientation induced by a pressure field. This effect is proven for the first time in antiperovskite compounds by neutron powder diffraction analysis. This feature will enable wide applications in magnetoelectric devices and intelligent instruments.