TITLE

Peculiarities of radio frequency YBa[sub 2]Cu[sub 3]O[sub 7-x] superconducting quantum interference device response with a finite amplitude of the second harmonic in the current-phase relationship

AUTHOR(S)
Il'ichev, E.
PUB. DATE
November 2000
SOURCE
Applied Physics Letters;11/20/2000, Vol. 77 Issue 21
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The signal properties of radio frequency (rf) (SQUIDs) based on YBa[sub 2]Cu[sub 3]O[sub 7-x] symmetrical 30° and asymmetrical 45° grain-boundary Josephson junctions have been experimentally investigated. Both amplitude as well as phase detection have been used to read out the SQUID output signal. Comparison of the SQUID output signals to each other is given. It is shown that peculiarities of the rf SQUID response of SQUIDs with a 45° grain-boundary Josephson junction are consistent with an unconventional current-phase relation (CPR) of the Josephson junction, namely, the CPR contains a finite amplitude of the second harmonic. © 2000 American Institute of Physics.
ACCESSION #
4414430

 

Related Articles

  • Stroboscopic single-shot detection of the flux state in a radio frequency superconducting quantum interference device. Cosmelli, C.; Sciamanna, F.; Castellano, M. G.; Leoni, R.; Torrioli, G.; Carelli, P.; Chiarello, F. // Applied Physics Letters;4/29/2002, Vol. 80 Issue 17, p3150 

    The flux states of a rf superconducting quantum interference device (SQUID) can be used to investigate macroscopic quantum effects, the most challenging of which is the detection of quantum coherent oscillations, and are promising candidates for the implementation of quantum computing. The use...

  • Equivalent parameters of a Josephson junction in a microwave SQUID structure. Vendik, O. G.; Danilov, I. S. // Technical Physics;Nov99, Vol. 44 Issue 11, p1360 

    The equivalent parameters of a Josephson junction in a microwave SQUID structure are calculated on the basis of relations obtained as a result of an analysis of the operation of an rf SQUID. This analysis is based on the sawtooth variation of the voltage on the resonator as a function of the...

  • High-T[sub c] multilayer step-edge Josephson junctions and SQUIDs. Missert, N.; Harvey, T.E. // Applied Physics Letters;9/20/1993, Vol. 63 Issue 12, p1690 

    Fabricates superconductor-normal metal-superconductor step-edge Josephson junctions and superconducting quantum interference devices. Reproducibility and uniformity of the junctions; Description of junctions grown on thin-film step edges of SrTiO[sub 3]; Discussion of critical currents of...

  • YBa[sub 2]Cu[sub 3]O[sub 7] ramp-type junctions and superconducting quantum interference devices.... Grundler, D.; Krumme, J.-P. // Applied Physics Letters;10/3/1994, Vol. 65 Issue 14, p1841 

    Presents a ramp-type Josephson junctions and superconducting quantum interference devices. Use of the ultrathin layer of NdGaO[sub 3] as weak contact; Exhibition of current-voltage characteristics of the resistivity-shunted-junction type; Display of hysteretic behavior below 70 Kelvin.

  • Development of high temperature superconducting Josephson junctions and quantum interference.... Reagor, D.; Houlton, R. // Applied Physics Letters;4/24/1995, Vol. 66 Issue 17, p2280 

    Develops high-temperature superconducting Josephson junctions and quantum interference devices in superconductor-normal-superconductor edge junction design. Use of ytrrium barium[sub 2]copper[sub 3]oxygen[ sub 7-x] for superconducting and normal layers; Difference in substrate temperature...

  • Enhanced quantum interference effects in parallel Josephson junction arrays. Miller Jr., J.H.; Gunaratne, G.H.; Huang, J.; Golding, T.D. // Applied Physics Letters;12/16/1991, Vol. 59 Issue 25, p3330 

    Demonstrates the enhanced quantum interference effects in parallel Josephson junction arrays. Function of applied magnetic flux; Enhancement and narrowing of the periodic principal maxima in the critical current; Application of the superconducting quantum interference grating.

  • Low-noise YBa[sub 2]Cu[sub 3]O[sub 7-sigma] direct-current superconducting quantum interference.... Lee, L.P.; Longo, J. // Applied Physics Letters;3/20/1995, Vol. 66 Issue 12, p1539 

    Examines the fabrication of low-noise YBCO superconducting quantum interference device magnetometers on SrTiO3 bicrystal substrates. Function of Josephson junctions; Composition of the magnetometer design; Device exhibiting large voltage modulation with applied flux.

  • Characteristics of asymmetric superconducting quantum interference devices. Testa, G.; Sarnelli, E.; Pagano, S.; Calidonna, C. R.; Furnari, M. Mango // Journal of Applied Physics;5/1/2001, Vol. 89 Issue 9, p5145 

    Direct current-superconducting quantum interference devices (SQUIDs) characterized by asymmetric Josephson junctions have never been used for applications. In order to demonstrate their potential advantages, a throughout numerical analysis of different asymmetric configurations has been carried...

  • Dynamic properties of a superconducting quantum interference device containing arrays of Josephson junctions. Darula, M.; Seidel, P.; Busse, F.; Benˇacˇka, Sˇ. // Journal of Applied Physics;8/15/1993, Vol. 74 Issue 4, p2674 

    Presents information on a study which analyzed the dynamic properties of a superconducting quantum interference device (SQUID) containing arrays of Josephson junctions in a superconducting loop. Modeling of many junction SQUID; Static characteristics of SQUID; Conclusions.

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics