Controlling both the amplitude and phase of the quantum order parameter � in nanostructures is important for next-generation information and communication technologies. The long-range coherence of attractive electrons in superconductors render these materials as a nearly ideal platform for such applications. To-date, control over �has remained limited to… (More)
Figure 2| Experimental setup of the gated SQUID. (a) Equivalent circuit of the gated weak link, i.e. a three-port Josephson-Junction )designated by an ‘x’( bundle. (b) Equivalent circuit of the gated SQUID (the gated weak link is designated by a dashed square with an ‘x’ inside(. (c) SEM image of our Nb on SiO2 gated weak-link (�g denotes the width of the gate port, and � denotes the width of the weak-link port). (d) SEM image of our gated DC-SQUID. The input- � , gating- �g and output- � currents flow in the device are added to guide the eye.