Investigation of magnetic and transport properties of GdSbSe.

IF 2.3 4区 物理与天体物理 Q3 PHYSICS, CONDENSED MATTER Journal of Physics: Condensed Matter Pub Date : 2025-01-13 DOI:10.1088/1361-648X/ada50c
Aarti Gautam, Prabuddha Kant Mishra, Souvik Banerjee, A Sundaresan, Ashok Kumar Ganguli
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Abstract

We report the detailed investigation of the magnetic, transport, and magnetocaloric effects (MCEs) of GdSbSe by magnetic susceptibilityχ(T), isothermal magnetizationM(H), resistivityρ(T,H), and heat capacityCp(T)measurements, crystallizing in the ZrSiS-type tetragonal crystal system with space group P4/nmm. Temperature-dependent magnetic susceptibility measurements revealed long-range antiferromagnetic ordering with two additional magnetic anomalies below Néel temperature (TN≈8.6K), corroborated through magnetocaloric and specific heat studies. Isothermal magnetization measurements unveil hidden metamagnetic signatures through a clear deviation from linearity. In addition, the enhanced value of the Sommerfeld coefficient (γ= 152(5) mJ mol-1K2) suggests strong electronic correlations in GdSbSe. The entropy of magnetization derived from magnetic isotherms unfolds the field-induced transition from Inverse MCE to Conventional MCE. The detailed transport properties indicate a semimetallic behavior, strongly coupled with magnetic order. Furthermore, the linear field dependence of MR in the high-field region anticipate the possibility of Dirac-like dispersion. Deviations from Kohler's rule and non-linear Hall resistivity suggest the multiband nature of GdSbSe.

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GdSbSe的磁性和输运性质研究。
我们通过磁化率χ(T)、等温磁化M (H)、电阻率ρ(T, H)和热容量Cp(T)测量详细研究了GdS- bSe的磁性、输运和磁热效应,并在空间 ;群P 4/nmm的zrsis型四方晶体体系中结晶。与温度相关的磁化率测量显示,在N´eel温度(TN≈ 8.6 K)以下,有两个额外的磁异常,这一点通过磁热学和比热研究得到了证实。等温磁化 ;测量通过明显偏离线性揭示隐藏的超磁特征。此外,Sommerfeld系数的增强值(γ = 152(5) mJ/ mol K2)表明GdSbSe具有很强的电子相关性。由磁等温线导出的磁化熵揭示了磁场诱导从逆磁热效应(IMCE)到常规磁热效应(MCE)的转变。详细的输运性质表明半金属行为,与 ;磁序强耦合。此外,MR在高场区的线性场依赖性预测了狄拉克类色散的可能性。偏离科勒规则和非线性霍尔电阻率表明GdSbSe的多波段性质。
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来源期刊
Journal of Physics: Condensed Matter
Journal of Physics: Condensed Matter 物理-物理:凝聚态物理
CiteScore
5.30
自引率
7.40%
发文量
1288
审稿时长
2.1 months
期刊介绍: Journal of Physics: Condensed Matter covers the whole of condensed matter physics including soft condensed matter and nanostructures. Papers may report experimental, theoretical and simulation studies. Note that papers must contain fundamental condensed matter science: papers reporting methods of materials preparation or properties of materials without novel condensed matter content will not be accepted.
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