Flat bands enhance Andreev reflection and induce asymmetric electronic Goos-Hänchen shifts at NS interfaces in the extended α-T3 lattice, producing a Hall-like Josephson response in SNS geometry dominated by quasi-flat bands.
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Enhanced Andreev Reflection in Flat-Band Systems: Wave Packet Dynamics, DC Transport and the Josephson Effect
Flat bands enhance Andreev reflection and induce asymmetric electronic Goos-Hänchen shifts at NS interfaces in the extended α-T3 lattice, producing a Hall-like Josephson response in SNS geometry dominated by quasi-flat bands.