Visualizing Chiral Edge Modes in Twisted Cuprate Superconductors via Scanning-Probe Quantum Sensing
Abstract
Recently, unconventional superconductivity hosted by twisted van der Waals (vdW) heterostructures has received immense interest due to the exotic pairing symmetry, electronic interactions and nontrivial topological nature that are naturally relevant to the fast-advancing quantum technologies. Here, we report scanning-probe quantum sensing of nanoscale electromagnetic behaviors of twisted vdW cuprate superconductors. Using single-spin relaxometry, we directly visualize edge modes spontaneously formed in twisted Bi2Sr2CaCu2O8+x (BSCCO). By investigating temperature dependent variations of edge-state-induced quantum spin relaxation, we experimentally evaluate the magnitude of nontrivial topological band gap opened at nodal points in twisted BSCCO and its critical temperature behaviors under different twist angles. We further observe alternating chiral domains defined by edge modes, exploring experimental signatures of in-plane magnetic field-induced topology in 45° twisted BSCCO. Our results advance the current understanding of twisted vdW nodal superconductors, presenting an appealing high-temperature topological superconducting material platform for cutting-edge quantum innovation.
Related
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BibTeX
@misc{li2026visualizing,
title = {{Visualizing Chiral Edge Modes in Twisted Cuprate Superconductors via Scanning-Probe Quantum Sensing}},
author = {Senlei Li and Xiaomeng Cui and Renzhi Sun and Lingjie Zhou and Yiran Zhao and Kenji Watanabe and Takashi Taniguchi and Genda Gu and Hailong Wang and Kartiek Agarwal and Philip Kim and Chunhui Rita Du},
howpublished = {arXiv},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2609.13070},
eprint = {2609.13070},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2609.13070},
}
RIS
TY - UNPB
TI - Visualizing Chiral Edge Modes in Twisted Cuprate Superconductors via Scanning-Probe Quantum Sensing
AU - Senlei Li
AU - Xiaomeng Cui
AU - Renzhi Sun
AU - Lingjie Zhou
AU - Yiran Zhao
AU - Kenji Watanabe
AU - Takashi Taniguchi
AU - Genda Gu
AU - Hailong Wang
AU - Kartiek Agarwal
AU - Philip Kim
AU - Chunhui Rita Du
PY - 2026
DA - 2026/10/23
PB - arXiv
DO - 10.48550/arxiv.2609.13070
UR - https://arxiv.org/abs/2609.13070
AB - Recently, unconventional superconductivity hosted by twisted van der Waals (vdW) heterostructures has received immense interest due to the exotic pairing symmetry, electronic interactions and nontrivial topological nature that are naturally relevant to the fast-advancing quantum technologies. Here, we report scanning-probe quantum sensing of nanoscale electromagnetic behaviors of twisted vdW cuprate superconductors. Using single-spin relaxometry, we directly visualize edge modes spontaneously formed in twisted Bi2Sr2CaCu2O8+x (BSCCO). By investigating temperature dependent variations of edge-state-induced quantum spin relaxation, we experimentally evaluate the magnitude of nontrivial topological band gap opened at nodal points in twisted BSCCO and its critical temperature behaviors under different twist angles. We further observe alternating chiral domains defined by edge modes, exploring experimental signatures of in-plane magnetic field-induced topology in 45° twisted BSCCO. Our results advance the current understanding of twisted vdW nodal superconductors, presenting an appealing high-temperature topological superconducting material platform for cutting-edge quantum innovation.
ER -