反钙钛矿Mn_3AX化合物的晶格、磁性和电输运性质的研究进展  

Progress in lattice, magnetic and electronic transport properties of antiperovskite Mn_3 AX

作　　者：丁磊[1] 王聪[1] 褚立华[1] 纳元元[1] 闫君[1] 

机构地区：[1]北京航空航天大学物理学院,凝聚态物理与材料物理研究中心,北京100191

出　　处：《物理学报》2011年第9期882-895,共14页Acta Physica Sinica

基　　金：国家自然科学基金(批准号: 50772008)资助的课题~~

摘　　要：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,尤其是晶格、电输运和磁有序之间强关联的研究进展,同时也综述了对晶格、磁阻和磁相变等物性调控的一些成果;在此基础上,结合此类化合物的发展现状提出未来研究的一些展望.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.

关 键 词：反钙钛矿 磁相变 负热膨胀 电输运 

分 类 号：O482.5[理学—固体物理]