Density of states in a superconductor carrying a supercurrent.
نویسندگان
چکیده
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.
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ورودعنوان ژورنال:
- Physical review letters
دوره 90 12 شماره
صفحات -
تاریخ انتشار 2003