Supercurrent in atomic point contacts and Andreev states

Physical Review Letters

Volumn 85, Issue 1, 2000, Pages 170-173

  Goffman, M F ^a   Cron, R ^a   Levy Yeyati, A ^b   Joyez, P ^a   Devoret, M H ^a   Esteve, D ^a   Urbina, C ^a  

^a SERVICE DE PHYSIQUE DE L ETAT CONDENSÉ   (France)

^b UNIVERSIDAD AUTÓNOMA DE MADRID   (Spain)

Author keywords

[No Author keywords available]

Indexed keywords

COMPUTER SIMULATION; CURRENT VOLTAGE CHARACTERISTICS; ELECTRON RESONANCE; ELECTRON SCATTERING; ELECTRON TRANSITIONS; ENERGY GAP; FERMI LEVEL; JOSEPHSON JUNCTION DEVICES; MATHEMATICAL MODELS; PROBABILITY; QUANTUM THEORY; SUPERCONDUCTIVITY;

ANDREEV BOUND STATE; ATOMIC POINT CONTACT; NONADIABATIC TRANSITION; SUPERCURRENT;

ELECTRON TRANSPORT PROPERTIES;

EID: 0034229725     PISSN: 00319007     EISSN: None     Source Type: Journal    
DOI: 10.1103/PhysRevLett.85.170     Document Type: Article

References (27)

1. Entry points into the literature: P. Bagwell, R. Riedel, and L. Chang, Physica (Amsterdam) 203B, 475 (1994); V. S. Shumeiko and E. N. Bratus, J. Low Temp. Phys. 23, 181 (1997); A. Martín-Rodero, A. Levy Yeyati, and J. C. Cuevas, Superlattices Microstruct. 25, 927 (1999).
2. Entry points into the literature: P. Bagwell, R. Riedel, and L. Chang, Physica (Amsterdam) 203B, 475 (1994); V. S. Shumeiko and E. N. Bratus, J. Low Temp. Phys. 23, 181 (1997); A. Martín-Rodero, A. Levy Yeyati, and J. C. Cuevas, Superlattices Microstruct. 25, 927 (1999).
3. Entry points into the literature: P. Bagwell, R. Riedel, and L. Chang, Physica (Amsterdam) 203B, 475 (1994); V. S. Shumeiko and E. N. Bratus, J. Low Temp. Phys. 23, 181 (1997); A. Martín-Rodero, A. Levy Yeyati, and J. C. Cuevas, Superlattices Microstruct. 25, 927 (1999).
4. A. Furusaki and M. Tsukada, Solid State Commun. 78, 299 (1991); C. W. J. Beenakker and H. van Houten, Phys. Rev. Lett. 66, 3056 (1991).
5. A. Furusaki and M. Tsukada, Solid State Commun. 78, 299 (1991); C. W. J. Beenakker and H. van Houten, Phys. Rev. Lett. 66, 3056 (1991).
6. J. M. van Ruitenbeek, in Mesoscopic Electron Transport, edited by L. L. Sohn, L. P. Kouwenhoven, and G. Schön, NATO ASI, Ser. E, Vol. 345 (Kluwer, Dordrecht, 1997).
7. E. Scheer et al., Phys. Rev. Lett. 78, 3535 (1997); E. Scheer et al., Nature (London) 394, 154 (1998).
8. E. Scheer et al., Phys. Rev. Lett. 78, 3535 (1997); E. Scheer et al., Nature (London) 394, 154 (1998).
9. With one remarkable exception: M. C. Koops, G. V. van Duyneveldt, and R. de Bruyn Ouboter, Phys. Rev. Lett. 77, 2542 (1996).
10. D. Vion et al., Phys. Rev. Lett. 77, 3435 (1996); P. Joyez et al., J. Supercond. 12, 757 (1999).
11. D. Vion et al., Phys. Rev. Lett. 77, 3435 (1996); P. Joyez et al., J. Supercond. 12, 757 (1999).
12. J. M. van Ruitenbeek et al., Rev. Sci. Instrum. 67, 108 (1996).
13. These nonlinearities follow the temperature and magnetic field dependence of the gap and are not related to spurious electromagnetic resonances in the external circuit. See E. Scheer et al., Physica (Amsterdam) 280B, 425 (2000).
14. 2).
15. G.-L. Ingold and H. Grabert, Phys. Rev. Lett. 83, 3721 (1999).
16. D. E. McCumber, J. Appl. Phys. 39, 3113 (1968).
17. D. V. Averin, A. Bardas, and H. T. Imam, Phys. Rev. B 58, 11 165 (1998).
18. D. A. Ivanov and M. V. Feigel'man, JETP Lett. 68, 890 (1998).
19. Values of δ are given modulo 2π throughout this paper.
20. V. Ambegaokar and B. I. Halperin, Phys. Rev. Lett. 22, 1364 (1969).
21. i± selected according to a thermal equilibrium probability each time δ goes through 0, gives the same results.
22. i} fitting the IV with an accuracy better than 1%, a conservative estimate of the actual experimental accuracy.
23. For the power levels dissipated in the resistors we do not expect them to cool much below 100 mK. See M. Henny et al., Appl. Phys. Lett 71, 773 (1997).
24. D. Averin and A. Bardas, Phys. Rev. Lett. 75, 1831 (1995); Phys. Rev. B 53, R1705 (1996).
25. D. Averin and A. Bardas, Phys. Rev. Lett. 75, 1831 (1995); Phys. Rev. B 53, R1705 (1996).
26. E. Shimshoni and A. Stern, Phys. Rev. B 47, 9523 (1993).
27. A. V. Shytov, cond-mat/0001012.