Anomalous anisotropic magnetoresistance in single-crystalline Co/SrTiO_(3)(001)heterostructures  

作　　者：Shuang-Long Yang De-Zheng Yang Yu Miao Cun-Xu Gao De-Sheng Xue 杨双龙;杨德政;缪宇;高存绪;薛德胜(Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education,Lanzhou University,Lanzhou 730000,China)

机构地区：[1]Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education,Lanzhou University,Lanzhou 730000,China

出　　处：《Chinese Physics B》2021年第12期556-562,共7页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China(Grant Nos.12174163 and 91963201);the Program for Changjiang Scholars and Innovative Research Team in University,China(Grant No.IRT-16R35);the 111 Project,China(Grant No.B20063)。

摘　　要：The anisotropic magnetoresistances(AMRs)in single crystalline Co(6 nm)/SrTiO_(3)(001)heterostructures from 5 K to 300 K with the current direction setting along either Co[100]or Co[110]are investigated in this work.The anomalous(normal)AMR is observed below(above)100 K.With the current along Co[100]direction,the AMR shows negative longitudinal and positive transverse magnetoresistances at T<100 K,while the AMR is inverse with the current along Co[110].Meanwhile,the amplitude ratio between Co[110]and Co[100]is observed to be as large as 29 at 100 K.A crystal symmetry-adapted model of AMR demonstrates that interplay between the non-crystalline component and crossed AMR component results in the anomalous AMR.Our results may reveal more intriguing magneto-transport behaviors of film on SrTiO_(3)or other perovskite oxides.

关 键 词：single crystalline anisotropic magnetoresistance HETEROSTRUCTURE 

分 类 号：O469[理学—凝聚态物理]