Coulomb blockade effects at room temperature in thin-film nanoconstrictions fabricated by a novel technique

Applied Physics Letters

Volumn 73, Issue 24, 1998, Pages 3604-3606

  Kubatkin, S E ^a   Danilov, A V ^a   Bogdanov, A L ^a   Olin, H ^a   Claeson, T ^a  

^a CHALMERS UNIVERSITY OF TECHNOLOGY   (Sweden)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0000843462     PISSN: 00036951     EISSN: None     Source Type: Journal    
DOI: 10.1063/1.122838     Document Type: Article

References (19)

1. D. L. Klein, R. Roth, A. K. L. Lim, A. P. Alivisatos, and P. L. McEuen, Nature (London) 389, 699 (1997).
2. D. V. Averin and K. K. Likharev, in Mesoscopic Phenomena in Solids, edited by B. L. Altshuler, P. A. Lee, and R. A. Webb (North-Holland, New York, 1991), Chap. 6.
3. R. P. Andres, T. Bein, and M. Dorogi, Science 272, 1323 (1996).
4. E. S. Soldatov, V. V. Khanin, A. S. Trifonov, D. E. Presnov, S. A. Yakovenko, G. B. Khomutov, G. P. Gubin, and V. V. Kolesov, JETP Lett. 64, 556 (1996).
5. K.-H. Park, J. S. Ha, W. S. Yun, M. Shin, K.-W. Park, and E.-H. Lee, Appl. Phys. Lett. 71, 1469 (1997).
6. D. Porath and O. Millo, J. Appl. Phys. 81, 2241 (1997).
7. K. Matsumoto, M. Ishii, K. Segawa, Y. Oka, B. J. Vartanian, and J. S. Harris, Appl. Phys. Lett. 68, 34 (1996).
8. A. Bezryadin, C. Dekker, and G. Schmid, Appl. Phys. Lett. 71, 1273 (1997).
9. D. L. Klein, P. L. McEuen, J. E. Bowen Katari, R. Roth, and A. P. Alivisatos, Appl. Phys. Lett. 68, 2574 (1996).
10. D. C. Ralph, C. T. Black, and M. Tinkham, Phys. Rev. Lett. 76, 688 (1996).
11. C. T. Black, D. C. Ralph, and M. Tinkham, Phys. Rev. Lett. 78, 4087 (1997).
12. W. Chen and H. Ahmed, J. Vac. Sci. Technol. B 13, 2883 (1995).
13. W. Chen, H. Ahmed, and K. Nakazoto, Appl. Phys. Lett. 66, 3383 (1995).
14. G. J. Dolan, Appl. Phys. Lett. 31, 337 (1977).
15. R. I. Shekhter and I. O. Kulik, Sov. J. Low Temp. Phys. 1, 215 (1975).
16. Low-temperature properties of homogeneous one-dimensional arrays were described by P. Delsing, in Single Charge Tunneling, edited by H. Grabert and M. H. Devoret, NATO ASI Series (Plenum, New York, 1992). Modulation of electrical properties by electrostatic gate was discussed for a 13-junction array.
17. However, in uniform arrays the offset charge for each grain must be individually compensated to get a deep gate modulation [see experiments by A. van Oudenaarden, Ph.D. thesis, Delft (1998)].
18. Deduced from this fit the charging energies of the grains are 41 and 125 meV. This means that at room temperature (25 meV) our system is in an "intermediate" temperature regime, where "stochastic" Coulomb blockade, intrinsic to the double-grain system at low temperatures, is replaced by ordinary periodic Coulomb blockade oscillations, in agreement with the paper by I. M. Rusin, V. Chandrasekhar, E. I. Levin, and L. I. Glazman, Phys. Rev. B 45, 13469 (1992).
19. All the measurements were performed on the samples kept in vacuum. The sample resistance changed (normally increased) and gate effects disappeared when the sample was exposed to air. However, dry oxygen (10 mbar) did not affect our samples.