| 摘要 |
<p>Current controlled superconductor switches formed by reactive patterning or other fabrication techniques may be used to form logic circuits including OR, AND, NOR, NAND, and NOT gates, a circuit breaker or an analog-to-digital converter. Each switch contains a super-conductor resistor (R5) electrically connected in parallel with a non-superconductor resistor (R) and in series with a non-superconductor resistor (r). The superconductor resistor (R5) has a critical current Ic, such that it exhibits no electrical resistance to current flow less than Ic, and exhibits positive electrical resistance to current flow greater than or equal to Ic. The switch can accordingly be toggled between two states (i.e superconducting and non-superconducting) by suitably controlling the current flowing through the switch. This switching behaviour provides the basis for constructing logic gates and other digital circuit devices.</p> |
