Mutual phase locking in systems of high-Tc superconductor-normal metal-superconductor junctions

Carl D. Reintsema; Ronald H. Ono; Todd E. Harvey; N. Missert; Leila R. Vale

doi:10.1117/12.181005

2 July 1994 Mutual phase locking in systems of high-Tc superconductor-normal metal-superconductor junctions

Carl D. Reintsema, Ronald H. Ono, Todd E. Harvey, N. Missert, Leila R. Vale

Proceedings Volume 2160, Superconductive Devices and Circuits; (1994) https://doi.org/10.1117/12.181005
Event: OE/LASE '94, 1994, Los Angeles, CA, United States

Abstract

We have investigated the interaction between high critical temperature (high-T_c) superconductor-normal metal- superconductor step-edge junctions coupled through a non- superconducting feedback loop. We have characterized the strength of the interaction as a function of frequency and temperature for both a circuit without a groundplane and an all high-T_c multilayer circuit incorporating a superconducting ground plane. We observed relative locking strengths (the ratio of the measured locking current I_L to the junctions average critical current I_c) as large as I_LI_cequals9% and peak locking frequencies as high as 1.06 THz. The maximum temperature at which locking occurred was 35 K. An analysis of the temperature dependence of the locking current accounting for thermal fluctuations in the context of Johnson noise from resistive elements in the circuit agrees well with our experimental observations.

Citation Download Citation

Carl D. Reintsema, Ronald H. Ono, Todd E. Harvey, N. Missert, and Leila R. Vale "Mutual phase locking in systems of high-Tc superconductor-normal metal-superconductor junctions", Proc. SPIE 2160, Superconductive Devices and Circuits, (2 July 1994); https://doi.org/10.1117/12.181005

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available