Dynamics of metastable vortex states in weakly pinned superconductors: A phenomenological model

Physical Review B - Condensed Matter and Materials Physics

Volumn 63, Issue 22, 2001, Pages

  Ravikumar, G ^a  

^a BHABHA ATOMIC RESEARCH CENTRE   (India)

Author keywords

[No Author keywords available]

Indexed keywords

ARTICLE; CONDUCTANCE; CONDUCTOR; ELECTRIC CURRENT; ELECTRIC POTENTIAL; MAGNETIC FIELD; MATHEMATICAL ANALYSIS; MODEL; MOLECULAR DYNAMICS; PHENOMENOLOGY;

EID: 0348055702     PISSN: 10980121     EISSN: 1550235X     Source Type: Journal    
DOI: 10.1103/PhysRevB.63.224523     Document Type: Article

References (18)

1. M J. Higgins and S. Bhattacharya, Physica C257, 232 (1996), and references therein.
2. A I. Larkin and Y N. Ovchinnikov, Zh. Éksp. Teor. Fiz 65, 1704 (1973) [Sov. Phys. JETP38, 854 (1974)].
3. P L. Gammel, U. Yaron, A P. Ramirez, D J. Bishop, A M. Chang, R. Ruel, L N. Pfeiffer, E. Bucher, G. D’Anna, D A. Huse, K. Mortensen, M R. Eskildsen, and P H. Kes, Phys. Rev. Lett.80, 833 (1998).
4. M. Steingart, A G. Putz, and E J. Kramer, J. Appl. Phys.44, 5580 (1973).
5. R. Wordenweber, P H. Kes, and C C. Tsuei, Phys. Rev. B33, 3172 (1986).
6. W. Henderson, E Y. Andrei, M J. Higgins, and S. Bhattacharya, Phys. Rev. Lett.77, 2077 (1996).
7. G. Ravikumar, V C. Sahni, P K. Mishra, T V. Chandrasekhar Rao, S S. Banerjee, A K. Grover, S. Ramakrishnan, S. Bhattacharya, M J. Higgins, E. Yamamoto, Y. Haga, M. Hedo, Y. Inada, and Y. Onuki, Phys. Rev. B57, R11 069 (1998).
8. G. Ravikumar, P K. Mishra, V C. Sahni, S S. Banerjee, A K. Grover, S. Ramakrishnan, P L. Gammel, D J. Bishop, E. Buscher, M J. Higgins, and S. Bhattacharya, Phys. Rev. B61, 12 490 (2000).
9. Z L. Xiao, E Y. Andrei, and M J. Higgins, Phys. Rev. Lett.83, 1664 (1999).
10. A A. Zhukov, S. Kokkaliaris, P A J. de Groot, M J. Higgins, S. Bhattacharya, R. Gagnon, and L. Taillefer, Phys. Rev. B61, R886 (2000).
11. L. Pust, Supercond. Sci. Technol.3, 598 (1990).
12. G. Ravikumar, K V. Bhagwat, V C. Sahni, S. Ramakrishnan, A K. Grover, and S. Bhattacharya, Phys. Rev. B61, R6479 (2000).
13. G. Ravikumar, V C. Sahni, A K. Grover, S. Ramakrishnan, P L. Gammel, D J. Bishop, E. Bucher, M J. Higgins, and S. Bhattacharya, Phys. Rev. B63, 024505 (2001).
14. Y. Paltiel, E. Zeldov, Y N. Myasoedov, H. Shtrikman, S. Bhattacharya, M J. Higgins, Z L. Xiao, E Y. Andrei, P L. Gammel, and D J. Bishop, Nature (London)403, 398 (2000).
15. The time constant (formula presented) should be related to the transit time of the vortices across the sample and is thus inversely related to the velocity of vortex motion [S. Bhattacharya (private communication)].
16. Qualitatively similar results can be obtained by choosing (formula presented) where (formula presented) becomes zero as (formula presented). With (formula presented), it is easy to see that change in (formula presented) (or the extent of annealing) is dependent only on the absolute distance moved by the vortex lattice. With the higher-order terms, in (formula presented), one can imagine that the extent of annealing depends not only on the distance moved by the vortex lattice but also on the velocity at which it moved. That is an interesting possibility, which is beyond the scope of the present work. To the best of our knowledge, there is no experiment showing such a possibility.
17. M N. Wilson, Superconducting Magnets (Clarendon Press, Oxford, 1983).
18. W. Henderson, E Y. Andrei, and M J. Higgins, Phys. Rev. Lett.81, 2352 (1998).