- Physical Review Journals
All JournalsPhysics Magazine
Access Provided by Xinjiang University

Physical Review Letters

Export citation

Export citation

Choose format for download:

Download Citation
  • Access by Xinjiang University

Quasiparticle Interference Effects in a Ballistic Superconductor-Semiconductor-Superconductor Josephson Junction

G. Bastian, E. O. Göbel, A. B. Zorin, H. Schulze, J. Niemeyer, and T. Weimann

M. R. Bennett and K. E. Singer

  • Physikalisch-Technische Bundesanstalt (PTB), D-38116 Braunschweig, Germany

  • Department of Electrical Engineering and Electronics, University of Manchester Institute of Science and Technology, P.O. Box 88, Manchester, M60 1QD United Kingdom

PDF

Phys. Rev. Lett. 81, 1686 – Published 24 August, 1998

DOI: https://doi.org/10.1103/PhysRevLett.81.1686

Abstract

We have studied transport properties in a superconductor-semiconductor-superconductor junction formed by two superconducting Nb electrodes and a two-dimensional electron gas in an InAs/AlSb heterostructure in the ballistic regime on the basis of I−V measurements. We observe sharp spikes in the differential resistance at temperatures below 2.5 K which can be explained by quasiparticle interference effects, which are related to Andreev bound states.

View figure in article

References (27)

  1. B. D. Josephson, Phys. Lett. 1, 261 (1962).
  2. W. L. McMillan, Phys. Rev. 167, 331 (1968).
  3. A. W. Kleinsasser, T. N. Jackson, G. D. Pettit, H. Schmid, J. M. Woodall, and D. P. Kern, IEEE Trans. Magn. 23, 703 (1987).
  4. A. F. Andreev, Zh. Eksp. Teor. Fiz. 46, 1823 (1964); Sov. Phys. JETP 19, 1228 (1964).
  5. A. F. Morpurgo, S. Holl, B. J. van Wees, T. M. Klapwijk, and G. Borghs, Phys. Rev. Lett. 78, 2636 (1997).
  6. I. O. Kulik, Zh. Eksp. Teor. Fiz. 57, 1745 (1969); Sov. Phys. JETP 30, 944 (1970).
  7. M. Octavio, M. Tinkham, G. E. Blonder, and T. M. Klapwijk, Phys. Rev. B 27, 6739 (1983).
  8. R. Kümmel, U. Schüssler, U. Gunsenheimer, and H. Plehn, Physica (Amsterdam) 185C–189C, 221 (1991).
  9. U. Schüssler and R. Kümmel, Phys. Rev. B 47, 2754 (1993).
  10. Some authors have measured similar spikes in the dV/dI curves of a few samples [[11,12]], partially called the “fingerprint” of the junction [[13]], which might have the same origin as our observations, but there has never been a systematic study, and it was unclear if these structures resulted from imperfect sample preparation.
  11. S. G. Lachenmann, I. Friedrich, A. Förster, D. Uhlisch, and A. A. Golubov, Phys. Rev. B 56, 14 108 (1997).
  12. J. R. Gao, J. P. Heida, B. J. van Wees, T. M. Klapwijk, G. Borghs, and C. T. Foxon, Surf. Sci. 305, 470 (1994).
  13. C. Nguyen, J. Werking, H. Kroemer, and E. L. Hu, Appl. Phys. Lett. 57, 87 (1990).
  14. C. Nguyen, H. Kroemer, and E. L. Hu, Appl. Phys. Lett. 65, 103 (1994).
  15. M. Kuhlmann, U. Zimmermann, D. Dikin, S. Abens, K. Keck, and V. M. Dmitriev, Z. Phys. B 96, 13 (1994).
  16. A. Chrestin, T. Matsuyama, and U. Merkt, Phys. Rev. B 55, 8457 (1997).
  17. A. F. Morpurgo, B. J. van Wees, T. M. Klapwijk, and G. Borghs, Phys. Rev. Lett. 79, 4010 (1997).
  18. C. J. Lambert, J. Phys. Condens. Matter 5, 707 (1993).
  19. P. F. Bagwell, R. Riedel, and L. Chang, Physica (Amsterdam) 203B, 475 (1994).
  20. S. Chaudhuri and P. F. Bagwell, Phys. Rev. B 51, 16 936 (1995).
  21. In other terms, the spikes in the differential resistance can be understood as an effect of parametric interaction of an overdamped Josephson junction with a high- Q resonator. In this case, the resonator losses can be partially compensated and the I−V curve exhibits similar peculiarities [[22]].
  22. K. K. Likharev, Dynamics of Josephson Junctions and Circuits (Gordon and Breach Science Publishers, New York, 1986).
  23. Similar spikes in the dV−dI curves and their spectral shift with temperature have also been observed in a superconductor-insulator-normal-conductor-insulator-superconductor sandwich structure made of Nb−AlOx−Al−AlOx−Nb very recently [H. Schulze et al. (to be published)], which shows the general validity of the discussed effect.
  24. A. F. Morpurgo and F. Beltram, Phys. Rev. B 50, 1325 (1994).
  25. Two different points along the width with different phases can be connected by a “standing wave” if the phase condition is met. The phase difference along the width is changed by the magnetic field, so that the resonance condition is changed.
  26. J. Nitta, T. Akazaki, and H. Takayanagi, Phys. Rev. B 49, 3659 (1994).
  27. U. Gunsenheimer, U. Schüssler, and R. Kümmel, Phys. Rev. B 49, 6111 (1994).

Outline

Information

Phys. Rev. Lett. 81, 1686– Published 24 August, 1998
  • Received 3 November 1997

© 1998 American Physical Society

Sign In to Your Journals Account

Filter

Filter

Article Lookup

Enter a citation