Electrical modulation of superconducting critical temperature in liquid-gated thin niobium films
Electrical modulation of superconducting critical temperature in liquid-gated thin niobium films
We demonstrate that the superconducting critical temperature (Tc) of thin niobium films can be electrically modulated in a liquid-gated geometry device. Tc can be suppressed and enhanced by applying positive and negative gate voltage, respectively, in a reversible manner within a range of about 0.1 K. At a fixed temperature …