反钙钛矿Mn3AX化合物的晶格、磁性和电输运性质的研究进展

近年来,研究发现反钙钛矿化合物Mn₃AX(A=Cu,Zn,Sn,Ni,Al,Ga等;X=N/C)具有超导,巨磁阻,近零电阻温度系数,负膨胀,磁致伸缩,压磁效应,以及磁卡效应等丰富的物理性能,因此此类化合物受到人们越来越多的关注.反钙钛矿Mn₃AX化合物的结构和物性的研究,将对我们深入认识材料的"本-构"关系具有重要的意义.本文重点综述了部分反钙钛矿Mn₃AX化合物奇特的物理性质,尤其是 关键词： 反钙钛矿 磁相变 负热膨胀 电输运

Comprehensive Survey for the Frontier Disciplines Progress in lattice, magnetic and electronic transport properties of antiperovskite Mn3AX

In recent years, it was found that antiperovskite compounds Mn₃AX(A=Cu, Zn, Sn, Ni, Al, Ga etc.;X=N/C) exhibit abundant physical properties. Their useful functionalities arising from the interplay between crystal lattice and magnetism, such as superconductivity, giant magnetoresistance, near-zero temperature coefficient of resistance, negative thermal expansion, magnetostriction, piezomagnetic effect, the magnetocaloric effect, etc, have aroused the great interest. The thorough study of the crystal structure and physical properties of Mn₃AX is important for understanding the relationship of "nature-structure". In this article, we review the progress in the peculiar physical properties of Mn₃AX, especially the progress of strong correlations among lattice, electronic transport and magnetic ordering. Meanwhile, the control over the lattice,magnetoresistance and magnetic transition is also reviewed. Finally, some perspectives are proposed.