Kondo scattering in underdoped Nd1-xSrxNiO2 infinite-layer superconducting thin films

作     者：Ting-Na Shao Zi-Tao Zhang Yu-Jie Qiao Qiang Zhao Hai-Wen Liu Xin-Xiang Chen Wei-Min Jiang Chun-Li Yao Xing-Yu Chen Mei-Hui Chen Rui-Fen Dou Chang-Min Xiong Guang-Ming Zhang Yi-Feng Yang Jia-Cai Nie Ting-Na Shao;Zi-Tao Zhang;Yu-Jie Qiao;Qiang Zhao;Hai-Wen Liu;Xin-Xiang Chen;Wei-Min Jiang;Chun-Li Yao;Xing-Yu Chen;Mei-Hui Chen;Rui-Fen Dou;Chang-Min Xiong;Guang-Ming Zhang;Yi-Feng Yang;Jia-Cai Nie

作者机构：Department of PhysicsBeijing Normal University State Key Laboratory of Low-Dimensional Quantum Physics and Department of PhysicsTsinghua University Frontier Science Center for Quantum Information Beijing National Laboratory for Condensed Matter Physics and Institute of PhysicsChinese Academy of Sciences School of Physical SciencesUniversity of Chinese Academy of Sciences Songshan Lake Materials Laboratory 

出 版 物：《National Science Review》 (国家科学评论(英文版))

年 卷 期：2023年第10卷第11期

页      面：96-102页

核心收录：

学科分类：080705[工学-制冷及低温工程] 07[理学] 070205[理学-凝聚态物理] 08[工学] 0807[工学-动力工程及工程热物理] 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）] 0702[理学-物理学] 

基　　金：supported by the National Natural Science Foundation of China (92065110, 11974048, 12074334, 12174429 12022407) the National Basic Research Program of China(2014CB920903 and 2013CB921701) the Strategic Priority Research Program of the Chinese Academy of Sciences(XDB33010100) 

主　　题：Kondo scattering superconductivity underdoped infinite-layer nickelate thin film 

摘      要：The recent discovery of superconductivity in infinite-layer nickelates generates tremendous research endeavors, but the ground state of their parent compounds is still under debate. Here, we report experimental evidence for the dominant role of Kondo scattering in the underdoped Nd1-xSrxNiO2thin films. A resistivity minimum associated with logarithmic temperature dependence in both longitudinal and Hall resistivities are observed in the underdoped Nd1-xSrxNiO2samples before the superconducting transition. At lower temperatures down to 0.04 K, the resistivities become saturated, following the prediction of the Kondo model. A linear scaling behavior σx yAHE～ σx xbetween anomalous Hall conductivity σx yAHEand conductivity σx x is revealed, verifying the dominant Kondo scattering at low temperature. The effect of weak(anti-)localization is found to be secondary. Our experiments can help in clarifying the basic physics in the underdoped Nd1-xSrxNiO2infinite-layer thin films.