Coexistence of High Temperature Superconductivity and Antiferromagnetic Order in a Cuprate with Multiple Hole Fermi Pockets
Abstract
The intricate relationship between high temperature superconductivity and antiferromagnetic order in cuprates, and the fundamental origin of electron pairing remain open questions. By utilizing high-resolution laser-based spatially-resolved angle-resolved photoemission spectroscopy, we investigate the seven-layer Bi2Sr2Ca6Cu7O18+δ (Bi2267) and identify a cuprate system that consists of multiple hole Fermi pockets. The observed Fermi pockets exhibit pronounced momentum-, temperature- and Fermi surface-dependent energy gaps. Crucially, high temperature superconductivity with a critical temperature (Tc) of ∼75 K emerges in a system with multiple Fermi pockets and the presence of strong antiferromagnetic order and correlations. In particular, substantial electron pairing is observed along the Fermi pocket with an energy gap up to ∼42 meV in lightly-doped CuO2 planes (p∼0.05). These findings challenge the conventional understanding of the roles of the nodal and antinodal electronic states in driving high-temperature superconductivity. They show that superconductivity and antiferromagnetism can coexist in a cuprate with multiple Fermi pockets, offering further insights into the pairing mechanism in cuprate superconductors.
Versions
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BibTeX
@misc{luo2026coexistence,
title = {{Coexistence of High Temperature Superconductivity and Antiferromagnetic Order in a Cuprate with Multiple Hole Fermi Pockets}},
author = {Xiangyu Luo and Yinghao Li and Hao Chen and Yiwen Chen and Jumin Shi and Taimin Miao and Bo Liang and Wenpei Zhu and Neng Cai and Xiaolin Ren and Yingjie Shu and Chaohui Yin and Jiuxiang Zhang and Chengtian Lin and Shenjin Zhang and Zhimin Wang and Fengfeng Zhang and Feng Yang and Qinjun Peng and Zuyan Xu and Guodong Liu and Xintong Li and Hanqing Mao and Tao Xiang and Lin Zhao and X. J. Zhou},
howpublished = {arXiv},
year = {2026},
month = jun,
doi = {10.48550/arxiv.2606.08643},
eprint = {2606.08643},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2606.08643},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Coexistence of High Temperature Superconductivity and Antiferromagnetic Order in a Cuprate with Multiple Hole Fermi Pockets
AU - Xiangyu Luo
AU - Yinghao Li
AU - Hao Chen
AU - Yiwen Chen
AU - Jumin Shi
AU - Taimin Miao
AU - Bo Liang
AU - Wenpei Zhu
AU - Neng Cai
AU - Xiaolin Ren
AU - Yingjie Shu
AU - Chaohui Yin
AU - Jiuxiang Zhang
AU - Chengtian Lin
AU - Shenjin Zhang
AU - Zhimin Wang
AU - Fengfeng Zhang
AU - Feng Yang
AU - Qinjun Peng
AU - Zuyan Xu
AU - Guodong Liu
AU - Xintong Li
AU - Hanqing Mao
AU - Tao Xiang
AU - Lin Zhao
AU - X. J. Zhou
PY - 2026
DA - 2026/06/07
PB - arXiv
DO - 10.48550/arxiv.2606.08643
UR - https://arxiv.org/abs/2606.08643
AB - The intricate relationship between high temperature superconductivity and antiferromagnetic order in cuprates, and the fundamental origin of electron pairing remain open questions. By utilizing high-resolution laser-based spatially-resolved angle-resolved photoemission spectroscopy, we investigate the seven-layer Bi_2Sr_2Ca_6Cu_7O_18+δ (Bi2267) and identify a cuprate system that consists of multiple hole Fermi pockets. The observed Fermi pockets exhibit pronounced momentum-, temperature- and Fermi surface-dependent energy gaps. Crucially, high temperature superconductivity with a critical temperature (T_c) of ∼75 K emerges in a system with multiple Fermi pockets and the presence of strong antiferromagnetic order and correlations. In particular, substantial electron pairing is observed along the Fermi pocket with an energy gap up to ∼42 meV in lightly-doped CuO_2 planes (p∼0.05). These findings challenge the conventional understanding of the roles of the nodal and antinodal electronic states in driving high-temperature superconductivity. They show that superconductivity and antiferromagnetism can coexist in a cuprate with multiple Fermi pockets, offering further insights into the pairing mechanism in cuprate superconductors.
ER -