Zeeman Splitting of the Coulomb Anomaly: A Tunneling Study in Two Dimensions.
نویسندگان
چکیده
We report measurements of the tunneling density of states (DOS) of ultrathin Al films in which superconductivity is quenched by a parallel magnetic field, Hk . 48 kG. The normal state DOS not only displays the usual logarithmic zero bias anomaly (ZBA) but also a new anomaly, superimposed on the ZBA, that appears at bias voltages V , 2mBHkye, the electron Zeeman splitting. Measurements in tilted fields reveal that the Zeeman feature collapses with increasing perpendicular field component, suggesting that it is associated with the Cooper electron-electron interaction channel. [S0031-9007(96)00791-0]
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ورودعنوان ژورنال:
- Physical review letters
دوره 77 6 شماره
صفحات -
تاریخ انتشار 1996