Skip to main content Accessibility help
×
Home

Effect of Twin Structure on Strain Dependences of Critical Current

  • Alexey V. Semenov (a1) (a2), Constantin G. Tretiatchenko (a1), Vassily L. Svetchnikov (a1), Volodymyr M. Pan (a1) and Harold Wiesmann (a3)...

Abstract

We suggest a model explaining nonlinear dependences of critical current Jc in YBCO epitaxial films. Two features of YBCO are taken into account: twin domain structure in orthorhombic phase and the anisotropy of uniaxial strain dependence of Tc . Applied strain changes elementary pinning force of the defects located at low-angle dislocation boundaries between differently oriented twin domains. Account of Tc dependence on strain this leads to approximately parabolic strain behavior of Jc . We have obtained analytical expressions for the “initial strain”, which actually describes a natural misbalance between numbers of grain boundaries separating a and b oriented domains, as well as for “strain sensitivity”, which is determined by Tc dependence on uniaxial a and b strains and by the effective redistribution of vortices. Other experimentally observed effects, such as temperature, magnetic field and two-peak strain dependences of J c, are shown to be described in the framework of suggested model.

Copyright

References

Hide All
1. van der Laan, D. C., Douglas, J. F., Clickner, C. C., Stauffer, T. C., Goodrich, L. F. and van Eck, H. J. N., Supercond. Sci. Technol. 24 032001 (2011).
2. van der Laan, D. C., Haugan, T. J., Barnes, P. N., Abraimov, D., Kametani, F., Larbalestier, D. C. and Rupich, M. W., Supercond. Sci. Technol. 23 014004 (2010).
3. van der Laan, D. C., Haugan, T. J. and Barnes, P. N., Phys. Rev. Lett. 103 027005 (2009).
4. van der Laan, D. C., Ekin, J. W., Douglas, J. F., Clickner, C. C., Stauffer, T. C. and Goodrich, L. F., Supercond. Sci. Technol. 23 072001 (2010).
5. Sugano, M., Shikimachi, K., Hirano, N. and Nagaya, S., Supercond. Sci. Technol. 23 085013 (2010).
6. Meingast, C., Kraut, O., Wolf, T., Wuhl, H., Erb, A. and Muller-Vogt, G., Phys. Rev. Lett. 67 1634 (1991).
7. Pashitskii, E. A. and Vakaryuk, V. I., Low Temp. Phys. 28 11 (2002).
8. Fedotov, Yu. V., Ryabchenko, S. M., Pashitskii, E. A., Semenov, A. V., Vakaryuk, V. I., Flis, V. S. and Pan, V. M., Physica C 372-376 1091 (2002).
9. Pan, V. M., Cherpak, Yu. V., Semenov, A. V., Pashitskii, E. A., Komashko, V. A., Pozigun, S. A., Tretiatchenko, C. G. and Pan, A. V., Phys Rev B 73 054508 (2006).
10. van der Laan, D. C., Abraimov, D., Polyanskii, A. A., Larbalestier, D. C., Douglas, J. F., Semerad, R. and Bauer, M., Supercond. Sci. Technol. 24 115010 (2011).
11. Blatter, G., Feigel’man, M. V., Geshkenbein, V. B., Larkin, A. I. and Vinokur, V. M., Rev. Mod. Phys. 66 1125 (1994).

Keywords

Effect of Twin Structure on Strain Dependences of Critical Current

  • Alexey V. Semenov (a1) (a2), Constantin G. Tretiatchenko (a1), Vassily L. Svetchnikov (a1), Volodymyr M. Pan (a1) and Harold Wiesmann (a3)...

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed