Pramana

, Volume 66, Issue 1, pp 289–294 | Cite as

Experimental adiabatic vortex ratchet effect in Nb films with asymmetric pinning trap

  • J. E. Villegas
  • N. O. Nunez
  • M. P. Gonzalez
  • E. M. Gonzalez
  • J. L. Vicent
Article

Abstract

Nb films grown on top of an array of asymmetric pinning centers show a vortex ratchet effect. A net flow of vortices is induced when the vortex lattice is driven by fluctuating forces on an array of pinning centers without reflection symmetry. This effect occurs in the adiabatic regime and it could be mimiced only by reversible DC driven forces.

Keywords

Vortices asymmetric pinning rectifier adiabatic ratchet 

PACS Nos

74.78.-w 05.60.-k 

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References

  1. [1]
    Special issue on Ratchets and Brownian Motors: Basic, Experiments and Applications edited by H Linke,Appl. Phys. A: Mater. Sci. Process 75, 167 (2002)Google Scholar
  2. [2]
    G Bar-Nahum, V Epshtein, A E Ruckenstein, R Rafikov, A Mastaev and E Nudler,Cell 120, 183 (2005)CrossRefGoogle Scholar
  3. [3]
    S Matthias and F Müller,Nature (London) 424, 53 (1999)CrossRefADSGoogle Scholar
  4. [4]
    J E Villegas, S Savel’ev, F Nori, E M Gonzalez, J V Anguita, R Garcia and J L Vicent,Science 302, 1188 (2003)CrossRefADSGoogle Scholar
  5. [5]
    I Zapata, R Bartussek, F Sols and P Hänggi,Phys. Rev. Lett. 77, 2292 (1996)CrossRefADSGoogle Scholar
  6. [6]
    C S Lee, B Janko, L Derenyi and A L Barabasi,Nature (London) 400, 337 (1999)CrossRefADSGoogle Scholar
  7. [7]
    J F Wambaugh, C Reichhardt, C J Olson, F Marchesoni and F Nori,Phys. Rev. Lett. 83, 5106 (1999)CrossRefADSGoogle Scholar
  8. [8]
    S Weiss, D Koelle, J Müller, R Gross and K Barthal,Europhys. Lett. 51, 499 (2000)CrossRefADSGoogle Scholar
  9. [9]
    K W Kwok, R J Olsson, G Karapetrov, U Welp, V Vlasko-Vlasov, K Kadowaki and G W Crabtree,Physica C382, 137 (2002)ADSGoogle Scholar
  10. [10]
    R Wordenweber, P Dymasshevski and V R Misko,Phys. Rev. B69, 184504 (2004)ADSGoogle Scholar
  11. [11]
    J E Villegas, E M Gonzalez, M P Gonzalez, J V Anguita and J L Vicent,Phys. Rev. B71, 024519 (2005)ADSGoogle Scholar
  12. [12]
    J Van de Vondel, C C de Souza Silva, B Y Zhu, M Morelle and V V Moshchalkov,Phys. Rev. Lett. 94, 057003 (2005)CrossRefADSGoogle Scholar
  13. [13]
    J I Martin, M Velez, J Nogues and I K Schuller,Phys. Rev. Lett. 79, 1929 (1997)CrossRefADSGoogle Scholar
  14. [14]
    G S Mkrtchyan and V V Schmidt,Sov. Phys. JETP 34, 195 (1972)Google Scholar

Copyright information

© Indian Academy of Sciences 2006

Authors and Affiliations

  • J. E. Villegas
    • 1
  • N. O. Nunez
    • 1
  • M. P. Gonzalez
    • 1
  • E. M. Gonzalez
    • 1
  • J. L. Vicent
    • 1
  1. 1.Departamento Fisica Materiales, Facultad CC FisicasUniversidad ComplutenseMadridSpain

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