Yuan Noah F Q, Fu Liang
Shenzhen JL Computational Science and Applied Research Institute, Shenzhen, 518109 China.
Department of Physics, Massachusetts Institute of Technology, Cambridge, MA 02139.
Proc Natl Acad Sci U S A. 2022 Apr 12;119(15):e2119548119. doi: 10.1073/pnas.2119548119. Epub 2022 Apr 4.
SignificanceOur work shows a fascinating application of finite-momentum superconductivity, the supercurrent diode effect, which is being reported in a growing number of experiments. We show that, under external magnetic field, Cooper pairs can acquire finite momentum so that critical currents in the direction parallel and antiparallel to the Cooper pair momentum become unequal.
意义
我们的工作展示了有限动量超导的一个引人入胜的应用，即超流二极管效应，越来越多的实验都在报道这一效应。我们表明，在外部磁场下，库珀对可以获得有限动量，使得与库珀对动量平行和反平行方向的临界电流变得不相等。
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