Anomalous magnetoresistance in detwinned EuFe2As2

作     者：Zhuang Xu Junxiang Pan Zhen Tao Ruixian Liu Guotai Tan 徐状;潘俊香;陶镇;刘瑞鲜;谈国太

作者机构：Center for Advanced Quantum Studies and Department of PhysicsBeijing Normal UniversityBeijing 100875China 

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

年 卷 期：2020年第29卷第7期

页      面：495-501页

核心收录：

学科分类：0809[工学-电子科学与技术（可授工学、理学学位）] 07[理学] 070205[理学-凝聚态物理] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0702[理学-物理学] 

基　　金：Project supported by the Fundamental Research Funds for the Central Universities China(Grant No.2014JJCB27) 

主　　题：magnetoresistance spin reorientation iron pnictides 

摘      要：The in-plane magnetotransport of detwinned EuFe2As2 single crystal has been *** the antiferromagnetic phase of Eu^2+spins,very different magnetoresistance results are observed upon the change of the external magnetic field direction and the current *** could be attributed to the tunable orientation of the Eu^2+spins under magnetic *** scattering by spin fluctuation,superzone boundary effect,and cyclotron motion of charge carriers are used to interpret the observed anomalous magnetoresistance which is measured by using a current along a *** remarkable features of magnetoresistance suggest that itinerant electrons strongly couple with the spin configuration of Eu^2+,which has a huge influence on the transport properties of EuFe2As2.