Nonreciprocal superconducting NbSe2 antenna

Enze Zhang, Xian Xu, Yi-Chao Zou, Linfeng Ai, Xiang Dong, Ce Huang, Pengliang Leng, Shanshan Liu, Yuda Zhang, Zehao Jia, Xinyue Peng, Minhao Zhao, Yunkun Yang, Zihan Li, Hangwen Guo, Sarah J. Haigh, Naoto Nagaosa, Jian Shen and Faxian Xiu ()
Additional contact information
Enze Zhang: Fudan University
Xian Xu: Tongji University
Yi-Chao Zou: University of Manchester
Linfeng Ai: Fudan University
Xiang Dong: Fudan University
Ce Huang: Fudan University
Pengliang Leng: Fudan University
Shanshan Liu: Fudan University
Yuda Zhang: Fudan University
Zehao Jia: Fudan University
Xinyue Peng: Fudan University
Minhao Zhao: Fudan University
Yunkun Yang: Fudan University
Zihan Li: Fudan University
Hangwen Guo: Fudan University
Sarah J. Haigh: University of Manchester
Naoto Nagaosa: The University of Tokyo
Jian Shen: Fudan University
Faxian Xiu: Fudan University

Nature Communications, 2020, vol. 11, issue 1, 1-9

Abstract: Abstract The rise of two-dimensional (2D) crystalline superconductors has opened a new frontier of investigating unconventional quantum phenomena in low dimensions. However, despite the enormous advances achieved towards understanding the underlying physics, practical device applications like sensors and detectors using 2D superconductors are still lacking. Here, we demonstrate nonreciprocal antenna devices based on atomically thin NbSe2. Reversible nonreciprocal charge transport is unveiled in 2D NbSe2 through multi-reversal antisymmetric second harmonic magnetoresistance isotherms. Based on this nonreciprocity, our NbSe2 antenna devices exhibit a reversible nonreciprocal sensitivity to externally alternating current (AC) electromagnetic waves, which is attributed to the vortex flow in asymmetric pinning potentials driven by the AC driving force. More importantly, a successful control of the nonreciprocal sensitivity of the antenna devices has been achieved by applying electromagnetic waves with different frequencies and amplitudes. The device’s response increases with increasing electromagnetic wave amplitude and exhibits prominent broadband sensing from 5 to 900 MHz.

Date: 2020
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DOI: 10.1038/s41467-020-19459-5

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