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Special Issue:
SPECIAL TOPIC — Structures and properties of materials under high pressure
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| SPECIAL TOPIC — Structures and properties of materials under high pressure |
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Pressure-tuned structure and superconductivity in 2H-NbSe2 |
| Chen-Yi Li(李晨一)1, Zong-Lun Li(李宗伦)2, Hui Tian(田辉)3, Guang-Rui Gu(顾广瑞)4,†, Quan-Jun Li(李全军)1, and Xue-Ting Zhang(张雪婷)5,‡ |
1 State Key Laboratory of High Pressure and Superhard Materials, Jilin University, Changchun 130012, China;
2 School of Physical Science and Technology, Guangxi University, Nanning 530004, China;
3 School of Science, Shenyang Ligong University, Shenyang 110159, China;
4 Department of Physics, College of Science, Yanbian University, Yanji 133002, China;
5 School of Medical Information Engineering, Shenyang Medical College, Shenyang 110034, China |
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Abstract The structural and superconducting properties of 2H-NbSe$_{2}$ were systematically investigated under pressure up to 55.4 GPa using high-pressure electrical transport measurements, synchrotron radiation x-ray diffraction, and theoretical calculations. With increasing pressure, the enhanced interlayer coupling of 2H-NbSe$_{2}$ induces a structural transition from quasi-two dimensional to three dimensional. Meanwhile, accompanied by Fermi surface reconstruction, 2H-NbSe$_{2}$ exhibits a characteristic dome-shaped superconducting behavior, which provides valuable insights into the relationship between its superconducting properties and the structural transition.
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Received: 01 December 2025
Revised: 20 January 2026
Accepted manuscript online: 03 February 2026
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PACS:
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64.70.Nd
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(Structural transitions in nanoscale materials)
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63.22.Np
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(Layered systems)
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74.25.-q
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(Properties of superconductors)
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74.62.Fj
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(Effects of pressure)
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| Fund: This work was supported by the Doctoral Research Startup Fund of Liaoning Province (Grant No. 2025-BS-0867). |
Corresponding Authors:
Guang-Rui Gu, Xue-Ting Zhang
E-mail: grgu@ybu.edu.cn;syyxy_zxt@163.com
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Cite this article:
Chen-Yi Li(李晨一), Zong-Lun Li(李宗伦), Hui Tian(田辉), Guang-Rui Gu(顾广瑞), Quan-Jun Li(李全军), and Xue-Ting Zhang(张雪婷) Pressure-tuned structure and superconductivity in 2H-NbSe2 2026 Chin. Phys. B 35 056401
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