TY - JOUR

T1 - Transport across a normal-superconducting interface with coulomb interactions: a novel probe of electron-electron interactions in the normal metal.

AU - Dolby, P.

AU - Seviour, R.

AU - Lambert, C. J.

PY - 2001

Y1 - 2001

N2 - In this letter, we examine the effect of Coulomb interactions in the normal region of a normal-superconducting (N/S) mesoscopic structure; here the change from an attractive to a repulsive Coulombic interaction, at the N/S interface, causes a shift in the order parameter phase. We show that this shift has a pronounced effect on the Andreev bound states and demonstrate that the effect on Andreev scattering of non-zero order parameter tails can be used to probe the sign of the interaction in the normal region.

AB - In this letter, we examine the effect of Coulomb interactions in the normal region of a normal-superconducting (N/S) mesoscopic structure; here the change from an attractive to a repulsive Coulombic interaction, at the N/S interface, causes a shift in the order parameter phase. We show that this shift has a pronounced effect on the Andreev bound states and demonstrate that the effect on Andreev scattering of non-zero order parameter tails can be used to probe the sign of the interaction in the normal region.

U2 - 10.1088/0953-8984/13/6/103

DO - 10.1088/0953-8984/13/6/103

M3 - Journal article

VL - 13

SP - L147-L152

JO - Journal of Physics: Condensed Matter

JF - Journal of Physics: Condensed Matter

SN - 1361-648X

ER -