Abstract
The effect of a system of ferromagnetic particles on the field-dependent critical current of a Josephson junction is experimentally studied for junctions of different geometries. For edge junctions, the effect of commensurability between the periodic magnetic field of the particles and the Josephson vortex lattice is observed. The effect manifests itself in additional maxima of the field-dependent critical current. For overlap junctions, giant (greater than sixfold) variations of the maximum critical current are observed depending on the magnetic state of the particles. The changes in the “Fraunhofer” pattern of the overlaped Josephson junctions are attributed to the formation of Abrikosov vortices due to the effect of uniformly magnetized particles. The effects revealed in the experiments can be used to analyze the inhomogeneous magnetic field of a system of submicron particles and to control the transport properties of Josephson junctions.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Y. Otani, B. Pannetier, J. P. Nozieres, and D. Givord, J. Magn. Magn. Mater. 126, 622 (1993); O. Geoffroy, D. Givord, Y. Otany, et al., J. Magn. Magn. Mater. 121, 223 (1993); J. I. Martin, M. Velez, J. Nogues, and I. K. Shuller, Phys. Rev. Lett. 79, 1929 (1997); A. V. Silhanek, L. Van Look, S. Raedts, et al., Phys. Rev. B 68, 214504 (2003).
A. Y. Aladyshkin, A. A. Fraerman, S. A. Gusev, et al., J. Magn. Magn. Mater. 258−259, 406 (2003).
A. V. Samokhvalov, Pis’ma Zh. Éksp. Teor. Fiz. 78, 822 (2003) [JETP Lett. 78, 369 (2003)].
A. A. Golubov and M. Yu. Kupriyanov, Zh. Éksp. Teor. Fiz. 92, 1512 (1987) [Sov. Phys. JETP 65, 849 (1987)].
O. B. Hyun, J. R. Clem, and D. K. Finnemore, Phys. Rev. B 40, 175 (1989).
S. N. Vdovichev, A. Yu. Klimov, Yu. N. Nozdrin, and V. V. Rogov, Pis’ma Zh. Tekh. Fiz. 30(9), 52 (2004) [Tech. Phys. Lett. 30, 374 (2004)].
A. A. Fraerman, S. A. Gusev, L. A. Mazo, et al., Phys. Rev. B 65, 64424 (2002).
R. P. Cowburn and M. E. Welland, Appl. Phys. Lett. 72, 2041 (1998).
R. Stolz, L. Fritzsch, and H.-G. Meyer, Supercond. Sci. Technol. 12, 806 (1999).
M. J. Van Bael, J. Bekaert, K. Temst, et al., Phys. Rev. Lett. 86, 155 (2001).
I. L. Serpuchenko and A. V. Ustinov, Pis’ma Zh. Éksp. Teor. Fiz. 46, 435 (1987) [JETP Lett. 46, 549 (1987)]; B. A. Malomed and A. V. Ustinov, Phys. Rev. B 41, 254 (1990); M. A. Itzler and M. Tinkham, Phys. Rev. B 51, 435 (1995).
Author information
Authors and Affiliations
Additional information
__________
Translated from Pis’ma v Zhurnal Éksperimental’no\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l}\) i Teoretichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l}\) Fiziki, Vol. 80, No. 10, 2004, pp. 758–762.
Original Russian Text Copyright © 2004 by Vdovichev, Gribkov, Gusev, Il’ichev, Klimov, Nozdrin, Pakhomov, Rogov, Stolz, Fraerman.
Rights and permissions
About this article
Cite this article
Vdovichev, S.N., Gribkov, B.A., Gusev, S.A. et al. Properties of Josephson junctions in the inhomogeneous magnetic field of a system of ferromagnetic particles. Jetp Lett. 80, 651–654 (2004). https://doi.org/10.1134/1.1857273
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1134/1.1857273