Ferromagnetism and magnetostructural coupling in V-doped MnNiGe alloys

作     者：杨慧 刘俊 李超 王广龙 龚元元 徐锋 Hui Yang;Jun Liu;Chao Li;Guang-Long Wang;Yuan-Yuan Gong;Feng Xu

作者机构：MIIT Key Laboratory of Advanced Metallic and Intermetallic Materials TechnologySchool of Materials Science and EngineeringNanjing University of Science and Technology 

出 版 物：《Chinese Physics B》 (中国物理B（英文版）)

年 卷 期：2018年第27卷第10期

页      面：565-569页

核心收录：

学科分类：07[理学] 0809[工学-电子科学与技术（可授工学、理学学位）] 070205[理学-凝聚态物理] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0704[理学-天文学] 0702[理学-物理学] 

基　　金：Project supported by the Key Research&Development Program of Jiangsu Province China(Grant No.BE2017102) 

主　　题：magnetostructural transformation ferromagnetism magnetocaloric effect 

摘      要：The magnetostructural coupling between magnetic and structure transitions plays an important role in the multifunctional applications of magentocaloric materials. In this work, ferromagnetism and magnetostructural transformation are achieved in nonmagnetic V-doped MnNiGe alloys. With simultaneously reducing the transformation temperature and converting antiferromagnetic martensite to ferromagnetic state, the magnetostructural transformation between ferromagnetic orthorhombic phase and paramagnetic hexagonal phase is established in a temperature region as large as 130 K. The magnetic-field-induced magnetostructural transformation is accompanied by considerable magnetocaloric effect.