Sebastian Bergeret |
Monday, 14:00 - 14:30 | |

Magneto-electric effects in superconducting hybrid structures with spin-orbit coupling | ||

Spin-dependent fields acting on superconductivity lead to intriguing phenomena related to the singlet-triplet conversion of the superconducting condensate[1,2]. In the presence of spin-orbit coupling this conversion is the analog to the charge-spin coupling in normal systems. The singlet-triplet coupling leads to the superconducting counterparts of magneto-electric effects, like the Spin-Hall (SHE) and the Edelstein (EE) effects[4-5]. In a Josephson junction with spin-orbit coupling one can establish a direct connection between the inverse EE, also known as the spin-galvanic effect, and the appearance of an anomalous phase shift φ0 in the current-phase relation [3-4]. In this talk I will present a theoretical framework to discuss all the above magneto-electric effects in disorder superconducting structures with intrinsic and extrinsic spin-orbit coupling. Bibliography [1] F. S. Bergeret, A. F. Volkov, and K. B. Efetov, Rev. Mod. Phys. 77, 1321 (2005). [2] F.S. Bergeret and I. V. Tokatly, Phys. Rev. Lett. 110, 117003 (2013), and Phys. Rev. B 89, 134517 (2014). [3] V. M. Edelstein, Phys. Rev. Lett. 75, (2004). [4] F. Konschelle, F. S. Bergeret and I. V. Tokatly, Phys Rev. B 92,125443 (2015): [5] F.S. Bergeret and I. V. Tokatly, Europhys. Lett., 110(5), 57005 (2014); and Phys. Rev. B 94, 180502(R) (2017) |