Skip to main content
SpringerLink
Log in

Tunnel spectroscopy into the YBa2Cu4O8 compound

  • Published:
Il Nuovo Cimento D

Summary

We have realized planar tunnel junctions using both Y123 and Y124 single crystals as base electrodes and Pb as counterelectrode. The crystals, with T c=90 K (Y123) and T c=80 K (Y124), have been chemically etched and natural barriers were formed by a short air exposure. We have compared the tunneling spectra obtained on both systems. The features at about±18mV of the Y123 compound are still observed in the Y124, while the low-bias structures at ±5 mV are not present in the tunneling characteristics of the Y124 system. Linearity of the background conductance is also observed, with less steep slopes in Y124 that might indicate a reduced interlayer coupling in this system.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. B. Bucher, J. Karpinski, E. Kaldis and P. Wachter: Phys. Rev. B, 45, 3026 (1992).

    Article  ADS  Google Scholar 

  2. B. Dabrowski, K. Zhang, J. J. Pluth, J. L. Wagner and D. G. Hinks: Physica C, 202, 271 (1992).

    Article  ADS  Google Scholar 

  3. A. M. Cucolo: Int. J. Mod. Phys. B, 7, 2549 (1993).

    Article  Google Scholar 

  4. J. G. Simmons: J. Appl. Phys., 34, 1793 (1963).

    Article  ADS  Google Scholar 

  5. A. M. Cucolo, R. Di Leo and A. Nigro: Physica C, 207, 21 (1993).

    Article  Google Scholar 

  6. M. Gurvitch, J. M. Valles jr., A. M. Cucolo, R. C. Dynes, J. P. Garno, L. F. Schneemeyer and J. V. Waszczak: Phys. Rev Lett., 63, 1008 (1989).

    Article  ADS  Google Scholar 

  7. A. M. Cucolo, C. Noce and A. Romano: Phys. Rev. B, 46, 5864 (1992).

    Article  ADS  Google Scholar 

  8. Z. Sclesinger, R. T. Collins, F. Holtzberg, C. Feild, S. H. Blanton, U. Welp, G. W. Crabtree and Y. Fang: Phys. Rev. Lett., 65, 801 (1990).

    Article  ADS  Google Scholar 

  9. T. A. Friedmann, M. W. Rabin, J. Giapintzakis, J. P. Rise and D. M. Ginsberg: Phys. Rev. B, 42, 6217 (1990).

    Article  ADS  Google Scholar 

  10. A. M. Cucolo, R. Di Leo, P. Romano, B. Dabrowski, D. G. Hinks and P. G. Radaelli: Phys. Rev. B, 50, 10397 (1994).

    Article  ADS  Google Scholar 

Download references

Author information

Author notes

  1. B. Dabrowski

    Present address: Department of Physics, Northern Illinois University, 60115, Dekalb, IL, USA

  2. P. G. Radaelli

    Present address: CNRS Laboratoire de Cristallographie, 38042, Grenoble, Francia

Authors and Affiliations

  1. Dipartimento di Fisica, Università degli Studi di Salerno, 84081, Baronissi (SA), Italia

    P. Romano, R. Di Leo, A. Nigro & A. M. Cucolo

  2. Materials Science Division, Argonne National Laboratory, 60439, Argonne, IL, USA

    B. Dabrowski & P. G. Radaelli

Authors
  1. P. Romano
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. R. Di Leo
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. A. Nigro
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. A. M. Cucolo
    View author publications

    You can also search for this author in PubMed Google Scholar

  5. B. Dabrowski
    View author publications

    You can also search for this author in PubMed Google Scholar

  6. P. G. Radaelli
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Romano, P., Di Leo, R., Nigro, A. et al. Tunnel spectroscopy into the YBa2Cu4O8 compound. Il Nuovo Cimento D 16, 1885–1888 (1994). https://doi.org/10.1007/BF02462189

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF02462189

PACS

PACS

PACS

Search

Navigation