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001     1020363
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037 _ _ |a FZJ-2024-00096
100 1 _ |a Rüssmann, Philipp
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111 2 _ |a APS March Meeting 2023
|c Las Vegas
|d 2023-03-05 - 2023-03-10
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245 _ _ |a Proximity-induced superconductivity and finite energy pairing in the Rashba surface state of gold
260 _ _ |c 2023
336 7 _ |a Conference Paper
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520 _ _ |a The interplay of superconductivity and strong spin-orbit coupling has gained a lot of attention in recent year. For instance, it was realized that Cooper pairing can occur intrinsically away from the Fermi surface in j=3/2 superconductors with strong spin-orbit coupling [Phys. Rev. Research 4, L012017 (2022)]. In this work, we present a theoretical study of the proximity-induced superconducting coupling in a Rashba surface state due to its contact to an s-wave superconductor.We combine theoretical modelling and ab initio Bogolibov-de Gennes simulations [PRB 105, 125143 (2022)] using the JuKKR density functional theory code [https://jukkr.fz-juelich.de]. We investigate the proximity effect in the Rashba surface state at the interface between Al(111) and Au(111) that arises from the combination of strong spin-orbit coupling in Au and broken symmetry at the interface. We discuss how inter-orbital pairing can occur at finite energies away from the Fermi level under an external magnetic field and comment on the pairing symmetry in the proximity-induced coupling of the Rashba surface state.
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700 1 _ |a Bahari, Masoud
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700 1 _ |a Trauzettel, Björn
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856 4 _ |u https://meetings.aps.org/Meeting/MAR23/Session/YY04.8
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