Crystal structure, magnetic properties, and tunable Kondo effect in a new compound Nd5ScSb12

doi:10.1088/1674-1056/adc2df

中国物理B ›› 2025, Vol. 34 ›› Issue (6): 67502-067502.doi: 10.1088/1674-1056/adc2df

Crystal structure, magnetic properties, and tunable Kondo effect in a new compound Nd₅ScSb₁₂

Yi-Ran Li(李祎冉)¹, Na Li(李娜)^1,†, Ping Su(苏平)¹, Hui Liang(梁慧)¹, Kai-Yuan Hu(胡开源)¹, Ying Zhou(周颖)¹, Dan-Dan Wu(吴丹丹)¹, Yan Sun(孙燕)¹, Qiu-Ju Li(李秋菊)², Xia Zhao(赵霞)^3,‡, Xue-Feng Sun(孙学峰)^1,§, and Yi-Yan Wang(王义炎)^1,¶

1 Anhui Provincial Key Laboratory of Magnetic Functional Materials and Devices, Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, China;
2 School of Physics and Optoelectronic Engineering, Anhui University, Hefei 230601, China;
3 School of Physical Sciences, University of Science and Technology of China, Hefei 230026, China

收稿日期:2025-01-24 修回日期:2025-03-17 接受日期:2025-03-20 出版日期:2025-05-16 发布日期:2025-05-30
通讯作者: Na Li, Xia Zhao, Xue-Feng Sun, Yi-Yan Wang E-mail:nli@ahu.edu.cn;xiazhao@ustc.edu.cn;xfsun@ahu.edu.cn;wyy@ahu.edu.cn
基金资助:
Project supported by the National Key Research and Development Program of China (Grant No. 2023YFA1406500), the National Natural Science Foundation of China (Grant Nos. 12474098, 12274388, 12174361, 12404043, and 12204004), and the Natural Science Foundation of Anhui Province, China (Grant No. 2408085QA024).

Crystal structure, magnetic properties, and tunable Kondo effect in a new compound Nd₅ScSb₁₂

1 Anhui Provincial Key Laboratory of Magnetic Functional Materials and Devices, Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, China;
2 School of Physics and Optoelectronic Engineering, Anhui University, Hefei 230601, China;
3 School of Physical Sciences, University of Science and Technology of China, Hefei 230026, China

Received:2025-01-24 Revised:2025-03-17 Accepted:2025-03-20 Online:2025-05-16 Published:2025-05-30
Contact: Na Li, Xia Zhao, Xue-Feng Sun, Yi-Yan Wang E-mail:nli@ahu.edu.cn;xiazhao@ustc.edu.cn;xfsun@ahu.edu.cn;wyy@ahu.edu.cn
Supported by:
Project supported by the National Key Research and Development Program of China (Grant No. 2023YFA1406500), the National Natural Science Foundation of China (Grant Nos. 12474098, 12274388, 12174361, 12404043, and 12204004), and the Natural Science Foundation of Anhui Province, China (Grant No. 2408085QA024).

摘要/Abstract

摘要： The exploration and synthesis of new materials are important for materials science and condensed matter physics. Here, we report the crystal structure, magnetic properties, and electrical transport properties of the single crystals of Nd$_5$ScSb$_{12}$, which is a quasi-one-dimensional new compound. Nd$_5$ScSb$_{12}$ exhibits antiferromagnetic transition in both directions perpendicular and parallel to the long axis. Moreover, the magnetic field-dependent magnetization reveals two metamagnetic transitions. The electrical transport properties have been measured on the same sample but with different measurement lengths between the electrodes of the voltage. The resistivity exhibits the metallic behavior. At low temperatures, the Kondo effect and negative transverse magnetoresistance (MR) ($B \perp I$) have been observed. Interestingly, the measurement length has a significant impact on the Kondo effect and negative MR, providing an intuitive new approach to regulate the Kondo effect. As the measurement length increases, the Kondo effect and negative MR become more pronounced. This not only indicates that the interaction between magnetic impurities and conduction electrons dominates the electrical transport of Nd$_5$ScSb$_{12}$ at low temperatures, but also confirms that the negative MR originates from the suppression of the Kondo effect.

关键词: Kondo effect, Nd$_5$ScSb$_{12}$ single crystal, metamagnetic transitions

Abstract: The exploration and synthesis of new materials are important for materials science and condensed matter physics. Here, we report the crystal structure, magnetic properties, and electrical transport properties of the single crystals of Nd$_5$ScSb$_{12}$, which is a quasi-one-dimensional new compound. Nd$_5$ScSb$_{12}$ exhibits antiferromagnetic transition in both directions perpendicular and parallel to the long axis. Moreover, the magnetic field-dependent magnetization reveals two metamagnetic transitions. The electrical transport properties have been measured on the same sample but with different measurement lengths between the electrodes of the voltage. The resistivity exhibits the metallic behavior. At low temperatures, the Kondo effect and negative transverse magnetoresistance (MR) ($B \perp I$) have been observed. Interestingly, the measurement length has a significant impact on the Kondo effect and negative MR, providing an intuitive new approach to regulate the Kondo effect. As the measurement length increases, the Kondo effect and negative MR become more pronounced. This not only indicates that the interaction between magnetic impurities and conduction electrons dominates the electrical transport of Nd$_5$ScSb$_{12}$ at low temperatures, but also confirms that the negative MR originates from the suppression of the Kondo effect.

Key words: Kondo effect, Nd$_5$ScSb$_{12}$ single crystal, metamagnetic transitions

中图分类号: (Magnetotransport phenomena; materials for magnetotransport)

75.47.-m

72.15.Qm (Scattering mechanisms and Kondo effect) 75.50.Ee (Antiferromagnetics) 75.30.Kz (Magnetic phase boundaries (including classical and quantum magnetic transitions, metamagnetism, etc.))

Yi-Ran Li(李祎冉), Na Li(李娜), Ping Su(苏平), Hui Liang(梁慧), Kai-Yuan Hu(胡开源), Ying Zhou(周颖), Dan-Dan Wu(吴丹丹), Yan Sun(孙燕), Qiu-Ju Li(李秋菊), Xia Zhao(赵霞), Xue-Feng Sun(孙学峰), and Yi-Yan Wang(王义炎). Crystal structure, magnetic properties, and tunable Kondo effect in a new compound Nd₅ScSb₁₂[J]. 中国物理B, 2025, 34(6): 67502-067502.

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Crystal structure, magnetic properties, and tunable Kondo effect in a new compound Nd₅ScSb₁₂

Crystal structure, magnetic properties, and tunable Kondo effect in a new compound Nd₅ScSb₁₂

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