Title :
Negative resistance switch using a SNS junction
Author :
Luiz, A.M. ; Nicolsky, R.
Author_Institution :
Inst. de Fisica, Univ. Federal do Rio de Janeiro, Brazil
fDate :
3/1/1993 12:00:00 AM
Abstract :
The authors show the feasibility of a new type of superconducting switch using the negative differential resistance of the current-voltage characteristic curve of a superconductor-normal metal-superconductor (SNS) junction (a nontunneling Josephson junction). With the proper choice of load resistor, astable, monostable, or bistable circuits can be designed. The most relevant characteristic features of the proposed superconducting switch are analyzed. The power consumption and the switching speed of the proposed device are described. It is shown that the maximum switching speed of a single SNS multivibrator is on the order of 0.33 ps.<>
Keywords :
Josephson effect; negative resistance; superconducting junction devices; switches; 0.33 ps; I-V curve; SNS junction; current-voltage characteristic curve; negative differential resistance; negative resistance switch; nontunneling Josephson junction; power consumption; superconductor-normal metal-superconductor; switching speed; Bistable circuits; Frequency; Josephson junctions; Pulse generation; Resistors; Semiconductor diodes; Signal processing; Superconducting devices; Superconducting microwave devices; Switches;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
