层状SrCu4-x P2单晶的线性磁阻和结构畸变

IF 1.5 4区物理与天体物理 Q2 PHYSICS, MULTIDISCIPLINARY

Chinese Physics B Pub Date : 2023-09-06 DOI:10.1088/1674-1056/acf705

Yong Nie, Zheng Chen, Wensen Wei, Huijie Li, Yong Zhang, Ming Mei, Yuanyuan Wang, Wenhai Song, Dongsheng Song, Zhaosheng Wang, Xiang Zhu, W. Ning, Mingliang Tian

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引用次数: 0

摘要

本文对层状金属SrCu4-xP2单晶进行了系统的研究，结合了输运、磁化、热力学测量和结构表征。我们发现，在高达30T的磁场下，晶体表现出大的线性磁阻，没有任何饱和迹象。我们还观察到在Tp~140K处电阻率和热容显著异常的相变。热膨胀测量揭示了Tp附近细微的晶格参数变化，ΔLc/Lc~0.062%。结构表征证明在Tp以下和以上没有结构转变。所有这些结果表明，非磁性转变SrCu4-xP2应该与结构畸变有关。

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Linear magnetoresistance and structural distortion in layered SrCu4-x P2 single crystals

Here we report a systematic study on layered metal SrCu4-x P2 single crystals combined with transport, magnetization, thermodynamic measurements and structural characterization. We found the crystals show large linear magnetoresistance without any sign of saturation with magnetic field up to the 30 T. We also observed a phase transition with significant anomaly in resistivity and heat capacity at Tp ~ 140 K. Thermal expansion measurement reveals a subtle lattice parameters variation near Tp , i.e. ΔLc /Lc ~ 0.062%. The structural characterization proves that there is no structure transition below and above Tp . All these results suggest that the nonmagnetic transition SrCu4-x P2 should be associated with structural distortion.

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来源期刊

Chinese Physics B 物理-物理：综合

CiteScore

2.80

自引率

23.50%

发文量

15667

审稿时长

2.4 months

期刊介绍： Chinese Physics B is an international journal covering the latest developments and achievements in all branches of physics worldwide (with the exception of nuclear physics and physics of elementary particles and fields, which is covered by Chinese Physics C). It publishes original research papers and rapid communications reflecting creative and innovative achievements across the field of physics, as well as review articles covering important accomplishments in the frontiers of physics. Subject coverage includes: Condensed matter physics and the physics of materials Atomic, molecular and optical physics Statistical, nonlinear and soft matter physics Plasma physics Interdisciplinary physics.