Switching Device Based on RF-Field-Driven High-TC SQUID

Tadayuki KONDO  Yoshinao MIZUGAKI  Kei SAITO  Kensuke NAKAJIMA  Tsutomu YAMASHITA  

IEICE TRANSACTIONS on Electronics   Vol.E84-C   No.1   pp.55-60
Publication Date: 2001/01/01
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Issue on Superconductive Electronics)
Category: SQUIDs
RF-induced step,  RF flux,  SQUID,  switching device,  high temperature superconductor,  

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A voltage mode logic device based on RF-Field-driven DC-SQUID (RFDS) using high-TC superconducting Josephson junctions has been proposed. RFDS produces large RF-induced steps, and the orders of steps are strongly selected by DC magnetic flux crossing the SQUID loop superposing with RF magnetic field. In this paper, we present the experimental results of RFDS fabricated by using YBCO grain boundary Josephson junctions. The results are evaluated with numerical simulations. The enhancement of RF-induced steps, the strong selection of step orders and the switching performance are demonstrated.