SFB Extra Seminar
"Spin-split superconductors: Fundamentals and Applications"
| Date: | 04/28/2022, 11:00 AM - 12:00 PM |
| Category: | Seminar |
| Location: | Hubland Süd, Geb. P4 (Naturwissenschaftlicher Hörsaalbau), SE 4 |
| Organizer: | SFB 1170 ToCoTronics |
| Speaker: | Sebastian Bergeret - San Sebastian |
Spectral properties of a conventional superconductor (S) attached to a ferromagnetic insulator (FI) change drastically. Specifically, the exchange field at the FI/S interface leads to splitting the superconducting density of states. The coexistence of the exchange splitting and superconducting correlations in S/FI structures leads to unique fundamental properties and novel transport phenomena of interest for thermoelectricity, superconducting electronics, and radiation sensors [1-4]. In this talk, I review the recent progress in understanding the spectral and non-equilibrium properties of FI/S structures and their possible applications, including the realization of superconducting spin-valves [5] and diodes [6].
[1] FSB, M. Silaev, P. Virtanen, T.T. Heikilä, Rev. Mod. Phys 90 (2018) 041001; Progress in Surface Science 94.3 (2019) 100540.
[2] E. Strambini et al., Phys. Rev. Materials 1 (2017): 054402.
[3] A. Hijano et al, Phys. Rev, Research 3 (2021): 023131.
[4] T.T. Heikkilä et al, Phys. Rev. Appl. 10 (2018): 034053.
[5] G. De Simoni et al., Nano letters 18 (2018): 6369.
[6] E. Strambini et al, arXiv preprint arXiv:2109.01061(2021).
