Electronic Transport through a Bending Contact

• Authors: U Schröter
• Languages of publication: EN

Abstracts

EN

The so-called "break-junction technique" allows us to realize contacts only single-atom in diameter at their thinnest point. Electronic transport through such narrow constrictions shows a quantum mechanical signature which is well described in a transport channel picture. Each individual contact is characterized by an ensemble of channel transmission probabilities. Preferred total conductance values as well as the number of channels, however, turn out to be universal for the material investigated, despite the lack of control of the exact contact geometry.

Keywords

EN

73.23.-b; 74.50.+r; 74.45.+c

Discipline

• 74.50.+r: Tunneling phenomena; Josephson effects(for SQUIDs, see 85.25.Dq; for Josephson devices, see 85.25.Cp; for Josephson junction arrays, see 74.81.Fa)
• 74.45.+c: Proximity effects; Andreev reflection; SN and SNS junctions
• 73.23.-b: Electronic transport in mesoscopic systems

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2006
• Volume: 109
• Issue: 3
• Pages: 305-310

Dates

published

2006-03

received

2005-05-20

Contributors

author

U Schröter

• FB Physik, AG Scheer, Universität Konstanz, Universitätsstraße 10, 78457 Konstanz, Germany

References

• 1. N. Agraït, A.L. Yeyati, J.M. van Ruitenbeek, Phys. Rep., 377, 81, 2003
• 2. F. Pérez-Willard, J.C. Cuevas, C. Sürgers, P. Pfundstein, J. Kopu, M. Eschrig, H.v. Löhneysen, Phys. Rev. B, 69, 140502, 2004
• 3. E.S. Snow, D. Park, P.M. Campbell, Appl. Phys. Lett., 69, 269, 1996
• 4. C.Z. Li, N.J. Tao, Appl. Phys. Lett., 72, 894, 1998
• 5. F.-Q. Xie, L. Nittler, Ch. Obermair, Th. Schimmel, Phys. Rev. Lett., 93, 128303, 2004
• 6. J.I. Pascual, J. Méndez, G. Gómez-Herrero, A.M. Baró, N. García, V.T. Binh, Phys. Rev. Lett., 71, 1852, 1993
• 7. E. Scheer, P. Joyez, D. Esteve, C. Urbina, M.H. Devoret, Phys. Rev. Lett., 78, 3535, 1997
• 8. A.I. Yanson, J.M. van Ruitenbeek, Phys. Rev. Lett., 79, 2157, 1997
• 9. B.J. van Wees, H. van Houton, C.W.J. Beenakker, J.G. Williamson, L.P. Kouwenhoven, D. van der Marel, C.T. Foxon, Phys. Rev. Lett., 60, 848, 1988
• 10. J.C. Cuevas, A.L. Yeyati, A. Martin-Rodero, Phys. Rev. Lett., 80, 1066, 1998
• 11. E. Scheer, W. Belzig, Y. Naveh, M.H. Devoret, D. Esteve, C. Urbina, Phys. Rev. Lett., 86, 284, 2001
• 12. E. Scheer, N. Agraït, J.C. Cuevas, A.L. Yeyati, B. Ludoph, A. Martin-Rodero, G.R. Bollinger, J.M. van Ruitenbeek, C. Urbina, Nature, 394, 154, 1998
• 13. J.C. Cuevas, A. Martin-Rodero, A.L. Yeyati, Phys. Rev. B, 54, 7366, 1996
• 14. J. Reichert, R. Ochs, D. Beckmann, H.B. Weber, M. Mayor, H. v. Löhneysen, Phys. Rev. Lett., 88, 176804, 2002
• 15. J. Heurich, J.C. Cuevas, W. Wenzel, G. Schön, Phys. Rev. Lett., 88, 256803, 2002
• 16. T. Böhler, J. Grebing, A. Mayer-Gindner, H.v. Löhneysen, E. Scheer, Nanotechnology, 15, 465, 2004

Identifiers

DOI

10.12693/APhysPolA.109.305