摘要
We report a systematic study on layered metal SrCu_(4-x)P_(2) single crystals via transport, magnetization, thermodynamic measurements and structural characterization. We find that the crystals show large linear magnetoresistance without any sign of saturation with a magnetic field up to 30T. We also observe a phase transition with significant anomalies in resistivity and heat capacity at T_(p)~140 K. Thermal expansion measurement reveals a subtle lattice parameter variation near Tp, i.e.,?L_(c)/L_(c)~0.062%. The structural characterization confines that there is no structure transition below and above T_(p). All these results suggest that the nonmagnetic transition of SrCu_(4-x)P_(2) could be associated with structural distortion.
作者
聂勇
陈正
韦文森
李慧杰
张勇
梅明
王园园
宋文海
宋东升
王钊胜
朱相德
宁伟
田明亮
Yong Nie;Zheng Chen;Wensen Wei;Huijie Li;Yong Zhang;Ming Mei;Yuanyuan Wang;Wenhai Song;Dongsheng Song;Zhaosheng Wang;Xiangde Zhu;Wei Ning;Mingliang Tian(Anhui Key Laboratory of Low-energy Quantum Materials and Devices,High Magnetic Field Laboratory,HFIPS,Chinese Academy of Sciences,Hefei 230031,China;Department of Physics,University of Science and Technology of China,Hefei 230026,China;Key Laboratory of Materials Physics,Institute of Solid State Physics,HFIPS,Chinese Academy of Sciences,Hefei 230031,China;Information Materials and Intelligent Sensing Laboratory of Anhui Province,Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education,Institutes of Physical Science and Information Technology,Anhui University,Hefei 230601,China;School of Physics,Anhui University,Hefei 230601,China)
基金
Project supported by the National Key Research and Development Program of China (Grant Nos.2023YFA1607403,2021YFA1600201,and 2022YFA1602603)
the Natural Science Foundation of China (Grant Nos.U19A2093,U2032214,and U2032163)
the Collaborative Innovation Program of Hefei Science Center,CAS (Grant No.2019HSC-CIP 001)
the Youth Innovation Promotion Association of CAS (Grant No.2021117)
the Natural Science Foundation of Anhui Province (No.1908085QA15)
the HFIPS Director’s Fund (Grant No.YZJJQY202304)
the CASHIPS Director’s Fund (Grant No.YZJJ2022QN36)
supported by the High Magnetic Field Laboratory of Anhui Province。
