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Title: High-temperature dc superconducting quantum interference device with deep-submicron YBa sub 2 Cu sub 3 O sub 7 weak links

Abstract

We have fabricated a YBa{sub 2}Cu{sub 3}O{sub 7} (YBCO) thin-film dc superconducting quantum interference device (SQUID) with lithographically defined deep-submicron weak links. At 77 K the voltage response to dc flux is sinusoidal and nonhysteretic, with maximum peak-to-peak amplitude of 5 {mu}V. The maximum response is 8 {mu}V at 70 K, where 2{ital LI}{sub 0}/{Phi}{sub 0}{approx}1. At lower temperatures, the maximum response oscillates in the range 4--6 {mu}V. Random telegraph noise was observed near 30--40 K. Well-behaved Shapiro steps were observable at all measured temperatures below {ital T}{sub {ital c}}.

Authors:
; ;  [1];  [2]
  1. Department of Physics, Boston University, Boston, Massachusetts (USA)
  2. AT T Bell Laboratories, Holmdel, New Jersey (USA)
Publication Date:
OSTI Identifier:
5150197
Resource Type:
Journal Article
Journal Name:
Applied Physics Letters; (United States)
Additional Journal Information:
Journal Volume: 59:20; Journal ID: ISSN 0003-6951
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; BARIUM OXIDES; SQUID DEVICES; CUPRATES; FABRICATION; YTTRIUM OXIDES; HIGH-TC SUPERCONDUCTORS; LOW TEMPERATURE; PERFORMANCE; QUATERNARY COMPOUNDS; ALKALINE EARTH METAL COMPOUNDS; AMINES; AMMONIUM COMPOUNDS; BARIUM COMPOUNDS; CHALCOGENIDES; COPPER COMPOUNDS; ELECTRONIC EQUIPMENT; EQUIPMENT; FLUXMETERS; MEASURING INSTRUMENTS; MICROWAVE EQUIPMENT; ORGANIC COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; SUPERCONDUCTING DEVICES; SUPERCONDUCTORS; TRANSITION ELEMENT COMPOUNDS; YTTRIUM COMPOUNDS; 426001* - Engineering- Superconducting Devices & Circuits- (1990-)

Citation Formats

Romaine, S E, Mankiewich, P M, Skocpol, W J, and Westerwick, E. High-temperature dc superconducting quantum interference device with deep-submicron YBa sub 2 Cu sub 3 O sub 7 weak links. United States: N. p., 1991. Web. doi:10.1063/1.105916.
Romaine, S E, Mankiewich, P M, Skocpol, W J, & Westerwick, E. High-temperature dc superconducting quantum interference device with deep-submicron YBa sub 2 Cu sub 3 O sub 7 weak links. United States. https://doi.org/10.1063/1.105916
Romaine, S E, Mankiewich, P M, Skocpol, W J, and Westerwick, E. 1991. "High-temperature dc superconducting quantum interference device with deep-submicron YBa sub 2 Cu sub 3 O sub 7 weak links". United States. https://doi.org/10.1063/1.105916.
@article{osti_5150197,
title = {High-temperature dc superconducting quantum interference device with deep-submicron YBa sub 2 Cu sub 3 O sub 7 weak links},
author = {Romaine, S E and Mankiewich, P M and Skocpol, W J and Westerwick, E},
abstractNote = {We have fabricated a YBa{sub 2}Cu{sub 3}O{sub 7} (YBCO) thin-film dc superconducting quantum interference device (SQUID) with lithographically defined deep-submicron weak links. At 77 K the voltage response to dc flux is sinusoidal and nonhysteretic, with maximum peak-to-peak amplitude of 5 {mu}V. The maximum response is 8 {mu}V at 70 K, where 2{ital LI}{sub 0}/{Phi}{sub 0}{approx}1. At lower temperatures, the maximum response oscillates in the range 4--6 {mu}V. Random telegraph noise was observed near 30--40 K. Well-behaved Shapiro steps were observable at all measured temperatures below {ital T}{sub {ital c}}.},
doi = {10.1063/1.105916},
url = {https://www.osti.gov/biblio/5150197}, journal = {Applied Physics Letters; (United States)},
issn = {0003-6951},
number = ,
volume = 59:20,
place = {United States},
year = {Mon Nov 11 00:00:00 EST 1991},
month = {Mon Nov 11 00:00:00 EST 1991}
}