TY - JOUR AU - Anthore, A. AU - Pothier, H. AU - Esteve, D. PY - 2003 DA - 2003// TI - Density of states in a superconductor carrying a supercurrent T2 - Phys. Rev. Lett. JO - Phys. Rev. Lett. SP - 127001 (1 to 4) VL - 90 IS - 12 KW - Usadel KW - superconducting nanowire AB - We have measured the tunneling density of states (DOS) in a superconductor carrying a supercurrent or exposed to an external magnetic field. The pair correlations are weakened by the supercurrent, leading to a modification of the DOS and to a reduction of the gap. As predicted by the theory of superconductivity in diffusive metals, we find that this effect is similar to that of an external magnetic field. UR - https://doi.org/10.1103/PhysRevLett.90.127001 DO - 10.1103/PhysRevLett.90.127001 N1 - Recommended by Klapwijk ID - Anthore_etal2003 ER -