Ferromagnetic proximity effect in a ferromagnet-quantum-dot-superconductor device

TY - JOUR

T1 - Ferromagnetic proximity effect in a ferromagnet-quantum-dot-superconductor device

AU - Hofstetter, L.

AU - Geresdi, A.

AU - Aagesen, Martin

AU - Nygård, Jesper

AU - Schönenberger, C.

AU - Csonka, S.

PY - 2010/6/18

Y1 - 2010/6/18

N2 - The ferromagnetic proximity effect is studied in InAs nanowire based quantum dots strongly coupled to a ferromagnetic (F) and a superconducting (S) lead. The influence of the F lead is detected through the splitting of the spin-1/2 Kondo resonance. We show that the F lead induces a local exchange field on the quantum dot, which has varying amplitude and sign depending on the charge states. The interplay of the F and S correlations generates an exchange field related subgap feature.

AB - The ferromagnetic proximity effect is studied in InAs nanowire based quantum dots strongly coupled to a ferromagnetic (F) and a superconducting (S) lead. The influence of the F lead is detected through the splitting of the spin-1/2 Kondo resonance. We show that the F lead induces a local exchange field on the quantum dot, which has varying amplitude and sign depending on the charge states. The interplay of the F and S correlations generates an exchange field related subgap feature.

U2 - 10.1103/PhysRevLett.104.246804

DO - 10.1103/PhysRevLett.104.246804

M3 - Journal article

C2 - 20867324

SN - 0031-9007

VL - 104

SP - 246804

JO - Physical Review Letters

JF - Physical Review Letters

IS - 24

ER -