@article{Hu2025, 
author = {Guojing Hu and Yechao Han and Weiqi Yu and Senhao Lv and Yuhui Li and Zizhao Gong and Hui Guo and Ke Zhu and Zhen Zhao and Qi Qi and Guoyu Xian and Lihong Bao and Xiao Lin and Jinbo Pan and Shixuan Du and Haitao Yang and Hong-Jun Gao},
title = {Tunable zero-field superconducting diode effect in two-dimensional ferromagnetic/superconducting Fe3GeTe2/NbSe2 heterostructure},
year = {2025},
journal = {Nano Research},
volume = {18},
number = {1},
pages = {94907068},
keywords = {zero-field superconducting diode effect, Ising superconducting NbSe2, ferromagnetic Fe3GeTe2, half-wave rectification},
url = {https://www.sciopen.com/article/10.26599/NR.2025.94907068},
doi = {10.26599/NR.2025.94907068},
abstract = {The emergence of superconducting diode effect (SDE) provides a new platform to investigate the intertwining among band topology, superconductivity, and magnetism, thereby establishing the foundation for achieving ultra-low dissipation devices and circuits. The realization of the tunable zero-field SDE in two-dimension (2D) devices is significant for 2D circuits, however, there has been great challenges in the appropriate materials synergy and fine device design. Here, we report a zero-field SDE in the van der Waals (vdW) heterostructure constructed by the Ising superconducting NbSe2 and ferromagnetic Fe3GeTe2 with a large perpendicular magnetic anisotropy. Based on the valley-Zeeman spin-orbit interaction (SOI) in NbSe2, the magnitude and polarity of the zero-field SDE can be modulated by altering the ferromagnetic properties of Fe3GeTe2 through the application of pre-magnetized out-of-plane magnetic fields. Furthermore, the stable half-wave rectification of square-wave currents is achieved by utilizing the tunable zero-field SDE in the Josephson junction-free structure. The tunable zero-field SDE in 2D heterostructures brings new opportunities for understanding the coexistence of superconductivity and time-reversal symmetry breaking, and for fabricating 2D ultra-low dissipation circuits.}
}