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We found a rich variety of vortex structures when a thin superconducting film (SC) is covered with a lattice of out-of-plane magnetized magnetic dots (MDs). The vortices are confined to the MD regions, and antivortices nucleate into regular lattices which relax through several second order transitions towards single-dot vortex-antivortex configurations with increasing period of the magnetic array. Creation of vortex-antivortex pairs with increasing MD-magnetization is controlled by a single quantity - the superfluid velocity. We demonstrate that due to the vortex-antivortex pairs and the supercurrents induced by the MDs, the critical current in the sample actually increases if exposed to a homogeneous external magnetic field, contrary to conventional SC behavior. We explain further experimental implications, such as the magnetic field-induced-superconductivity.
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1. J.M. Kosterlitz and D.J. Thouless, J. Phys. C: Solid State Phys. 6, 1181 (1973); M.R. Beasley, J.E. Mooij, and T.P. Orlando, Phys. Rev. Lett. 42, 1165 (1979).
2. L. F. Chibotaru, A. Ceulemans, V. Bruyndoncx and V. V. Moshchalkov, Nature (London) 408, 833 (2000); ibid. Phys. Rev. Lett. 86, 1323 (2001); V.R. Misko, V. M. Fomin, J. T. Devreese, and V. V. Moshchalkov, Phys. Rev. Lett. 90, 147003 (2003).
3. M. V. Milošević and F. M. Peeters, Phys. Rev. B 68, 024509 (2003).
4. V.M. Bedanov and F.M. Peeters, Phys. Rev. B 49, 2667 (1994).
5. J. I. Martin, M. Velez, J. Nogues, and I. K. Schuller, Phys. Rev. Lett. 79, 1929 (1997).
6. M. J. Van Bael, L. Van Look, K. Temst, M. Lange, J. Bekaert, G. Guentherodt, V. V. Moshchalkov, and Y. Bruynseraede, Physica C 332, 12 (2000).
7. M. Lange, M. J. Van Bael, L. Van Look, K. Temst, J. Swerts, G. Guentherodt, V. V. Moshchalkov, and Y. Bruynseraede, Europhys. Lett. 53, 646 (2001).
8. M.J. Van Bael, K. Temst, V.V. Moshchalkov, and Y. Bruynseraede, Phys. Rev. B 59, 14674 (1999).
9. M.J. Van Bael, M. Lange, S. Raedts, V.V. Moshchalkov, A.N. Grigorenko, and S.J. Bending, Phys. Rev. B 68, 014509 (2003).
10. J.I. Martin, M. Velez, A. Hoffmann, I.K. Schuller, and J.L. Vicent, Phys. Rev. Lett. 83, 1022 (1999).
11. Y. Jaccard, J.I. Martin, M.-C. Cyrille, M. Velez, J.L. Vicent, and I.K. Schuller, Phys. Rev. B 58, 8232 (1998).
12. M. Baert, V.V. Metlushko, R. Jonckheere, V.V. Moshchalkov, and Y. Bruynseraede, Phys. Rev. Lett. 74, 3269 (1995).
13. K. Harada, O. Kamimura, H. Kasai, T. Matsuda, A. Tonomura, and V.V. Moshchalkov, Science 274, 1167 (1996).
14. P. S. Deo, V. A. Schweigert, F. M. Peeters, and A. K. Geim, Phys. Rev. Lett. 79, 4653 (1997).
15. V. A. Schweigert and F. M. Peeters, Phys. Rev. B 57, 13817 (1998).
16. P. G. de Gennes, Superconducting of Metals and Alloys (Benjamin, New York, 1966).
17. M. M. Doria, J. E. Gubernatis, and D. Rainer, Phys. Rev. B 39, 9573 (1989).
18. R. Kato, Y. Enomoto, and S. Maekawa, Phys. Rev. B 47, 8016 (1993).
19. V. A. Schweigert, F. M. Peeters, and P. Singha Deo, Phys. Rev. Lett. 81, 2783 (1998).
20. M. V. Milošević and F. M. Peeters, Phys. Rev. B 68, 094510 (2003).
21. D.J Priour, Jr. and H.A. Fertig, Phys. Rev. Lett. 93, 057003 (2004).
22. V. Jaccarino and M. Peter, Phys. Rev. Lett. 9, 290 (1962).
23. M. Lange, M. J. Van Bael, Y. Bruynseraede, and V. V. Moshchalkov, Phys. Rev. Lett. 90, 197006 (2003).
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PACS numbers: 74.78.−w, 74.25.Op, 74.25.Qt, 74.25.Dw.
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Milošević, M., Peeters, F. Vortex-Antivortex Lattices in Superconducting Films with Magnetic Pinning Arrays. J Low Temp Phys 139, 257–272 (2005). https://doi.org/10.1007/s10909-005-3929-9
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DOI: https://doi.org/10.1007/s10909-005-3929-9