Weakly anisotropic superconductivity of Pr4Ni3O10 single crystals

Cuiying Pei; Yang Shen; Di Peng; Mingxin Zhang; Yi Zhao; Xiangzhuo Xing; Qi Wang; Juefei Wu; Junjie Wang; Lingxiao Zhao; Zhenfang Xing; Yulin Chen; Jinkui Zhao; Wenge Yang; Xiaobing Liu; Zhixiang Shi; Hanjie Guo; Qiaoshi Zeng; Guang-Ming Zhang; Yanpeng Qi

doi:10.1021/jacs.5c17977

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arXiv · 2601.13084

Weakly anisotropic superconductivity of Pr4Ni3O10 single crystals

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Abstract

Since the discovery of high-temperature superconductivity, studying the upper critical field and its anisotropy has been crucial for understanding superconducting mechanism and guiding applications. Here we perform in situ high-pressure angular-dependent electrical transport measurements on Pr4Ni3O10 single crystals using a custom diamond anvil cell (DAC) rotator and confirming its anisotropic superconductivity. The anisotropy parameter is approximately 1.6, decreasing with increasing temperature and approaches 1 near Tc. Comparing effective mass anisotropy and inter-block distance in cuprates and iron-based superconductors (FeSCs) reveals that Pr4Ni3O10 single crystals superconductors are consistent with a two-band model, where intralayer quantum confinement within the unit cell induces interlayer coherence, thereby leading to three-dimensional (3D) superconductivity. This study not only establishes the existence of anisotropic superconductivity in bulk Ruddlesden-Popper nickelates, but also provide critical insight into the role of dimensionality in high-temperature superconductivity.

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Cuiying Pei, Yang Shen, Di Peng, Mingxin Zhang, Yi Zhao, Xiangzhuo Xing, Qi Wang, Juefei Wu, Junjie Wang, Lingxiao Zhao, Zhenfang Xing, Yulin Chen, Jinkui Zhao, Wenge Yang, Xiaobing Liu, Zhixiang Shi, Hanjie Guo, Qiaoshi Zeng, Guang-Ming Zhang, Yanpeng Qi. 2026-01-19. Weakly anisotropic superconductivity of Pr4Ni3O10 single crystals. https://doi.org/10.1021/jacs.5c17977

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