TITLE

C-axis persistent current and Cooper-pair tunneling through intrinsic Josephson junctions in a ring-shaped YBa2Cu3O7-δ film

AUTHOR(S)
Mansour, A. I.; Saber, M. M.; Chow, K. H.; Jung, J.
PUB. DATE
October 2008
SOURCE
Applied Physics Letters;10/6/2008, Vol. 93 Issue 14, p142509
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We report the direct experimental observation of the temperature dependence of the persistent current Icj due to tunneling Cooper pairs along the c-axis intrinsic Josephson junctions integrated into YBa2Cu3O7-δ ring-shaped thin films. The measured Icj exhibits a linear temperature dependence over a wide range of temperatures well below Tc. Similar behavior was observed in different samples, confirming the reproducibility of the fabrication technique and the reliability of the results.
ACCESSION #
34850433

 

Related Articles

  • Magnetic-field-effect three-terminal device based on YBa2Cu3O7-δ grain boundary junctions. Alff, L.; Mayer, B.; Schuster, S.; Fröhlich, O.; Gerdemann, R.; Beck, A.; Gross, R. // Journal of Applied Physics;2/1/1994, Vol. 75 Issue 3, p1843 

    Presents a study which fabricated three-terminal yttrium barium copper[sub3]oxygen[sub7-δ] thin film devices based on a parallel array of grain boundary Josephson junctions. Investigation of the spatial homogeneity of the device properties; Comparison of the measured and the theoretically...

  • Josephson properties of Nb3Ge/oxide/Pb tunnel junctions. Tanabe, K.; Asano, H.; Michikami, O. // Applied Physics Letters;1984, Vol. 44 Issue 5, p559 

    Nb3Ge/oxide/Pb Josephson tunnel junctions have been fabricated on magnetron-sputtered Nb3Ge thin films using standard photolithography and a CF4 plasma cleaning technique. Their Josephson properties have also been investigated. High-quality junctions with a well-defined large gap (∼5 mV)...

  • Anomalous temperature dependence of the stationary Josephson tunnel current in junctions between d-wave superconductors. Gabovich, Alexander M.; Voitenko, Alexander I. // Low Temperature Physics;Sep2014, Vol. 40 Issue 9, p816 

    Stationary Josephson current Ic between d-wave superconductors was calculated for superconductor- insulator-superconductor structures with various rotations of crystals relatively to each other and the junction plane. The directionality of tunneling was taken into account. It was demonstrated...

  • Determination of barrier traversal time by modulation of the incident wave. Hagmann, M.J. // Applied Physics Letters;1/11/1993, Vol. 62 Issue 2, p199 

    Examines the use of incident wave modulation to different sized barriers for testing convergence in tunneling measurements in Josephson junctions. Use of two interfering plane waves; Calculation of barrier sizes; Agreement of results with the Buttiker and Landauer calculations for opaque barriers.

  • Stable Josephson reference voltages between 0.1 and 1.3 V for high-precision voltage standards. Niemeyer, J.; Grimm, L.; Meier, W.; Hinken, J. H.; Vollmer, E. // Applied Physics Letters;12/1/1985, Vol. 47 Issue 11, p1222 

    A new series array of 1440 Josephson tunnel junctions has been developed and tested as a reference voltage standard. It yields microwave induced quantized voltage steps up to 1.3 V. The steps are usually stable for more than 5 h with a microwave driving frequency of either 70 or 90 GHz. A...

  • Direct Observation Of The Proximity Effect In The N Layer In A Multi-Terminal SINIS Josephson Junction. Nevirkovets, I. P.; Chernyashevskyy, O.; Ketterson, J. B. // AIP Conference Proceedings;2006, Vol. 850 Issue 1, p983 

    It is found that the lateral conductivity of a thin N layer inside a multi-terminal SINIS device (at temperatures down to 1.8 K) is dissipative with a small coherent contribution near zero voltage, which can be suppressed with a small parallel magnetic field; here S, I, and N denote a...

  • Magnesium diboride superconductor thin film tunnel junctions for superconductive electronics. Kim, Tae Hee; Moodera, Jagadeesh S. // Journal of Applied Physics;12/1/2006, Vol. 100 Issue 11, p113904 

    Based on superconducting MgB2 films with higher critical temperature of 39 K and the advantage of the conventional superconductors, those that follow Bardeen-Cooper-Shrieffer theory, fabrication of quasiparticle, and Josephson tunnel junctions have been investigated. To explore the potential of...

  • Fabrication of in-plane aligned a-axis oriented YBa2Cu3O7-x trilayer Josephson junctions. Takeuchi, I.; Warburton, P. A.; Trajanovic, Z.; Lobb, C. J.; Dong, Z. W.; Venkatesan, T.; Bari, M. A.; Booij, W. E.; Tarte, E. J.; Blamire, M. G. // Applied Physics Letters;7/1/1996, Vol. 69 Issue 1, p112 

    We have fabricated vertical YBa 2Cu3O7-x/PrBa 2Cu3O7-x/YBa 2Cu3O7-x (YBCO/PBCO/YBCO) Josephson junctions using in-plane aligned a-axis oriented YBCO multilayers on (100) LaSrGaO4(LSGO). The Tc’s of the device electrodes are typically greater than 80 K. Josephson coupling is observed for...

  • Hysteretic Josephson junctions from.... Fink, R.L.; Thompson, M. // Applied Physics Letters;8/3/1992, Vol. 61 Issue 5, p595 

    Fabricates hysteretic Josephson junctions from YBa[sub 2]Cu[sub 3]O[sub 7-x] (YBCO)/SrTiO[sub 3]/Ba[sub 1-x]K[sub x]BiO[sub 3] (BKBO) thin films. Process of the hastened fabrication of large area junctions; Effect of microwave irradiation on Josephson current; Relationship between Josephson...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

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

Try another library?
Sign out of this library

Other Topics