Magnetic proximity effect in the two-dimensional ε-Fe_(2)O_(3)/NbSe_(2)heterojunction  

作　　者：车冰玉 胡国静 朱超 郭辉 吕森浩 刘轩冶 吴康 赵振 潘禄禄 祝轲 齐琦 韩烨超 林晓 李子安 申承民 鲍丽宏 刘政 周家东 杨海涛 高鸿钧 Bingyu Che;Guojing Hu;Chao Zhu;Hui Guo;Senhao Lv;Xuanye Liu;Kang Wu;Zhen Zhao;Lulu Pan;Ke Zhu;Qi Qi;Yechao Han;Xiao Lin;Zi’an Li;Chengmin Shen;Lihong Bao;Zheng Liu;Jiadong Zhou;Haitao Yang;Hong-Jun Gao(Beijing National Center for Condensed Matter Physics and Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China;School of Physical Sciences,University of Chinese Academy of Sciences,Beijing 100190,China;School of Materials Science and Engineering,Nanyang Technological University,Singapore;School of Physical Science and Technology,Guangxi University,Guangxi 530004,China;School of Physics,Beijing Institute of Technology,Beijing 100081,China)

机构地区：[1]Beijing National Center for Condensed Matter Physics and Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China [2]School of Physical Sciences,University of Chinese Academy of Sciences,Beijing 100190,China [3]School of Materials Science and Engineering,Nanyang Technological University,Singapore [4]School of Physical Science and Technology,Guangxi University,Guangxi 530004,China [5]School of Physics,Beijing Institute of Technology,Beijing 100081,China

出　　处：《Chinese Physics B》2024年第2期492-497,共6页中国物理B（英文版）

基　　金：The work is supported by the National Key Research and Development Program of China(Grant No.2022YFA1204104);the National Natural Science Foundation of China(Grant No.61888102);the Chinese Academy of Sciences(Grant Nos.ZDBS-SSW-WHC001 and XDB33030100).

摘　　要：Two-dimensional(2D)magnet/superconductor heterostructures can promote the design of artificial materials for exploring 2D physics and device applications by exotic proximity effects.However,plagued by the low Curie temperature and instability in air,it is hard to realize practical applications for the reported layered magnetic materials at present.In this paper,we developed a space-confined chemical vapor deposition method to synthesize ultrathin air-stable ε-Fe_(2)O_(3) nanosheets with Curie temperature above 350 K.The ε-Fe_(2)O_(3)/NbSe_(2) heterojunction was constructed to study the magnetic proximity effect on the superconductivity of the NbSe_(2) multilayer.The electrical transport results show that the subtle proximity effect can modulate the interfacial spin–orbit interaction while undegrading the superconducting critical parameters.Our work paves the way to construct 2D heterojunctions with ultrathin nonlayered materials and layered van der Waals(vdW)materials for exploring new physical phenomena.

关 键 词：two-dimensional heterojunctions magnetic proximity effect non-layered magnetic nanosheet spin-orbit interaction 

分 类 号：O469[理学—凝聚态物理]