Unconventional superconducting diode effects via antisymmetry and antisymmetry breaking
Abstract
Symmetry-breaking plays a pivotal role in unlocking intriguing properties and functionalities in material systems. For example, the breaking of spatial and temporal symmetries leads to a fascinating phenomenon of superconducting diode effect. However, generating and precisely controlling the superconducting diode effect poses significant challenges. Here, we take a novel route with deliberate manipulation of magnetic charge potentials to realize unconventional superconducting flux-quantum diode effects. We achieve this through suitably tailored nanoengineered arrays of nanobar magnets on top of a superconducting thin film. We demonstrate the vital roles of inversion antisymmetry and its breaking in evoking unconventional superconducting effects-a magnetically symmetric diode effect and an odd-parity magnetotransport effect. These effects are non-volatilely controllable through in-situ magnetization switching of the nanobar magnets. Our findings promote the use of antisymmetry (breaking) for initiating unconventional superconducting properties, paving the way for exciting prospects and innovative functionalities in superconducting electronics.
Keywords
Cite
@article{arxiv.2404.08405,
title = {Unconventional superconducting diode effects via antisymmetry and antisymmetry breaking},
author = {Chong Li and Yang-Yang Lyu and Wen-Cheng Yue and Peiyuan Huang and Haojie Li and Tianyu Li and Chen-Guang Wang and Zixiong Yuan and Ying Dong and Xiaoyu Ma and Xuecou Tu and Tao Tao and Sining Dong and Liang He and Xiaoqing Jia and Guozhu Sun and Lin Kang and Huabing Wang and Francois M. Peeters and Milorad V. Milošević and Peiheng Wu and Yong-Lei Wang},
journal= {arXiv preprint arXiv:2404.08405},
year = {2024}
}