Abstract
Three-terminal electronic devices based on flux-flow phenomena have attracted considerable interest due to their potential application in the interface between superconducting and semiconducting electronics. We have fabricated Josephson vortex flow transistors based on parallel arrays of YBa2Cu3CO7_8(YBCO) bicrystal Grain Boundary Junctions (GBJs). The array critical current Ic has been measured as a function of an external magnetic field B or the magnetic field of the current Ictrithat is fed through the control line coupled inductively to the array. By varying the device geometry we have studied the influence of the coupling of the magnetic control and the array parameters such as the number N of discrete Josephson elements and the screening parameter βL on the IC(B) dependences of the arrays. Going from βl <1 to βl >1 the measured IC(B) curves changed from a dependence similar to the diffraction pattern of a grid to a dependence dominated by the parameters of a single array cell. The impact on the available current gain is discussed.
| Original language | English |
|---|---|
| Pages (from-to) | 3292-3295 |
| Number of pages | 4 |
| Journal | IEEE Transactions on Applied Superconductivity |
| Volume | 5 |
| Issue number | 2 |
| DOIs | |
| State | Published - Jun 1995 |
| Externally published | Yes |