skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Microwave resonant activation in hybrid single-gap/two-gap Josephson tunnel junctions

Abstract

Microwave resonant activation is a powerful, straightforward technique to study classical and quantum systems, experimentally realized in Josephson junction devices cooled to very low temperatures. These devices typically consist of two single-gap superconductors separated by a weak link. We report the results of the first resonant activation experiments on hybrid thin film Josephson junctions consisting of a multi-gap superconductor (MgB2) and a single-gap superconductor (Pb or Sn). We can interpret the plasma frequency in terms of theories both for conventional and hybrid junctions. Using these models, we determine the junction parameters including critical current, resistance, and capacitance and find moderately high quality factors of Q0~100 for these junctions

Authors:
ORCiD logo [1]; ORCiD logo [2];  [2]; ORCiD logo [3];  [3]; ORCiD logo [4];  [4];  [4];  [5]
  1. Penn State Harrisburg, Middletown, PA (United States)
  2. Drexel Univ., Philadelphia, PA (United States)
  3. Pennsylvania State Univ., University Park, PA (United States)
  4. Temple Univ., Philadelphia, PA (United States)
  5. Univ. of the Sciences, Philadelphia, PA (United States)
Publication Date:
Research Org.:
Penn State Harrisburg, Middletown, PA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1468937
Alternate Identifier(s):
OSTI ID: 1328577
Grant/Contract Number:  
FG02-08ER46531
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Journal of Applied Physics
Additional Journal Information:
Journal Volume: 120; Journal Issue: 12; Journal ID: ISSN 0021-8979
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats

Carabello, Steven, Lambert, Joseph G., Mlack, Jerome, Dai, Wenqing, Li, Qi, Chen, Ke, Cunnane, Daniel, Xi, X. X., and Ramos, Roberto C. Microwave resonant activation in hybrid single-gap/two-gap Josephson tunnel junctions. United States: N. p., 2016. Web. doi:10.1063/1.4963651.
Carabello, Steven, Lambert, Joseph G., Mlack, Jerome, Dai, Wenqing, Li, Qi, Chen, Ke, Cunnane, Daniel, Xi, X. X., & Ramos, Roberto C. Microwave resonant activation in hybrid single-gap/two-gap Josephson tunnel junctions. United States. https://doi.org/10.1063/1.4963651
Carabello, Steven, Lambert, Joseph G., Mlack, Jerome, Dai, Wenqing, Li, Qi, Chen, Ke, Cunnane, Daniel, Xi, X. X., and Ramos, Roberto C. 2016. "Microwave resonant activation in hybrid single-gap/two-gap Josephson tunnel junctions". United States. https://doi.org/10.1063/1.4963651. https://www.osti.gov/servlets/purl/1468937.
@article{osti_1468937,
title = {Microwave resonant activation in hybrid single-gap/two-gap Josephson tunnel junctions},
author = {Carabello, Steven and Lambert, Joseph G. and Mlack, Jerome and Dai, Wenqing and Li, Qi and Chen, Ke and Cunnane, Daniel and Xi, X. X. and Ramos, Roberto C.},
abstractNote = {Microwave resonant activation is a powerful, straightforward technique to study classical and quantum systems, experimentally realized in Josephson junction devices cooled to very low temperatures. These devices typically consist of two single-gap superconductors separated by a weak link. We report the results of the first resonant activation experiments on hybrid thin film Josephson junctions consisting of a multi-gap superconductor (MgB2) and a single-gap superconductor (Pb or Sn). We can interpret the plasma frequency in terms of theories both for conventional and hybrid junctions. Using these models, we determine the junction parameters including critical current, resistance, and capacitance and find moderately high quality factors of Q0~100 for these junctions},
doi = {10.1063/1.4963651},
url = {https://www.osti.gov/biblio/1468937}, journal = {Journal of Applied Physics},
issn = {0021-8979},
number = 12,
volume = 120,
place = {United States},
year = {Wed Sep 28 00:00:00 EDT 2016},
month = {Wed Sep 28 00:00:00 EDT 2016}
}

Works referenced in this record:

Number-Phase Fluctuations in Two-Band Superconductors
journal, November 1966


Study of MgB2∕I∕Pb tunnel junctions on MgO (211) substrates
journal, July 2008


Superconductivity at 39 K in magnesium diboride
journal, March 2001


Experimental tests for the quantum behavior of a macroscopic degree of freedom: The phase difference across a Josephson junction
journal, April 1987


Thermal activation in extremely underdamped Josephson-junction circuits
journal, August 1983


Energy-Level Quantization in the Zero-Voltage State of a Current-Biased Josephson Junction
journal, October 1985


Quantum and classical resonant escapes of a strongly driven Josephson junction
journal, April 2010


Microwave-induced phase escape in a Josephson tunnel junction
journal, March 2008


Resonant Activation from the Zero-Voltage State of a Current-Biased Josephson Junction
journal, September 1984


Multiphoton Transitions between Energy Levels in a Current-Biased Josephson Tunnel Junction
journal, January 2003


Iron-Based Layered Superconductor La[O 1- x F x ]FeAs ( x = 0.05−0.12) with T c = 26 K
journal, March 2008


Lifetime of the zero-voltage state in Josephson tunnel junctions
journal, June 1974


Two-dimensional macroscopic quantum tunneling in multi-gap superconductor Josephson junctions
journal, December 2014


Inter-band phase fluctuations in macroscopic quantum tunneling of multi-gap superconducting Josephson junctions
journal, September 2014


Momentum-dependent multiple gaps in magnesium diboride probed by electron tunnelling spectroscopy
journal, January 2012


Quantum Dynamics of a d-Wave Josephson Junction
journal, January 2006


High-temperature superconductivity in iron-based materials
journal, August 2010


Degradation-free interfaces in MgB2/insulator/Pb Josephson tunnel junctions
journal, November 2006


Classical resonant activation of a Josephson junction embedded in an LC circuit
journal, April 2007


Two-band superconductor magnesium diboride
journal, November 2008


Energy gap substructures in conductance measurements of MgB 2 -based Josephson junctions: beyond the two-gap model
journal, April 2015


Superconductivity at 43 K in an iron-based layered compound LaO1-xFxFeAs
journal, April 2008