Abstract
By using a highly sensitive homemade AC magnetic susceptibility technique, the magnetic flux penetration has been measured in YBa2Cu3O7 − δ single crystals with giant screw dislocations (having the structure of the Archimedean spirals) exhibiting a = 3 spiral turnings, the pitch b = 18.7 μm and the step height c = 1.2 nm (the last parameter is responsible for creation of extended weak-link structure around the giant defects). The magnetic field applied parallel to the surface enters winding around the weak-link regions of the screw in the form of the so-called spiral Josephson fluxons characterized by the temperature dependent pitch b f (T). For a given temperature, a stabilization of the fluxon structure occurs when b f (T) matches b (meaning an optimal pinning by the screw dislocations) and manifests itself as a pronounced low-field peak in the dependence of the susceptibility on magnetic field (applied normally to the surface) in the form resembling the high-field (Abrikosov) fishtail effect.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
D. Daeumling, J. M. Seuntjens, and D. C. Larbalestier, Nature 346, 332 (1990).
V. F. Gantmakher, A. M. Neminskii, and D. V. Shovkun, JETP Lett. 52, 630 (1990).
G. Yang, P. Shang, S. D. Sutton, et al., Phys. Rev. B 48, 4054 (1993).
X. Y. Cai, A. Gurevich, D. C. Larbalestier, et al., Phys. Rev. B 50, 16774 (1994).
S. Sergeenkov, J. Appl. Phys. 78, 1114 (1995).
I. M. Babich and G. P. Mikitik, JETP Lett. 64, 586 (1996).
Y. Kopelevich and P. Esquinazi, J. Low Temp. Phys. 113, 1 (1998).
W. A. C. Passos, P. N. Lisboa-Filho, R. Caparroz, et al., Physica C 354, 189 (2001).
I. M. Sutjahja, M. Diantoro, D. Darminto, et al., Physica C 378, 541 (2002).
S. Sergeenkov, JETP Lett. 77, 99 (2003).
C. A. Cardoso and O. F. de Lima, J. Appl. Phys. 95, 1301 (2004).
G. Pasquini and V. Bekeris, Supercond. Sci. Technol. 19, 671 (2006).
I. Aranson, M. Gitterman, and B. Ya. Shapiro, Phys. Rev. B 52, 12878 (1995).
C. Changkang, Prog. Crystal Growth Charact. 36, 1 (1998).
M. Kakihana, J. Sol-Gel Sci. Technol. 6, 7 (1996).
C. Stari, V. A. G. Rivera, A. J. C. Lanfredi, et al., J. Magn. Magn. Mater. 320, e504 (2008).
F. M. Araujo-Moreira, P. Barbara, A. Cawthorne, and C. J. Lobb, Phys. Rev. Lett. 78, 4625 (1997).
S. Sergeenkov and F. M. Araujo-Moreira, JETP Lett. 80, 580 (2004).
F. M. Araujo-Moreira and S. Sergeenkov, Supercond. Sci. Technol. 21, 045002 (2008).
V. A. G. Rivera, S. Sergeenkov, C. Stari, et al., JETP Lett. 90, 365 (2009).
C. A. Cardoso, M. A. Avila, R. A. Ribeiro, et al., Physica C 354, 165 (2001).
C. Gerber, D. Anselmetti, J. G. Bednorz, et al., Nature 350, 279 (1991).
C. P. Bean, Rev. Mod. Phys. 36, 39 (1964).
C. P. Poole, Jr., H. A. Farach, and R. J. Creswick, Superconductivity (Academic, New York, 1995).
M. McElfresh, T. G. Miller, D. M. Schaefer, et al., J. Appl. Phys. 71, 5099 (1992).
Author information
Authors and Affiliations
Corresponding author
Additional information
The article is published in the original.
Rights and permissions
About this article
Cite this article
Sergeenkov, S., Cichetto, L., Rivera, V.A.G. et al. Pinning of spiral fluxons by giant screw dislocations in YBa2Cu3O7 − δ single crystals: Josephson analog of the fishtail effect. Jetp Lett. 91, 30–34 (2010). https://doi.org/10.1134/S0021364010010078
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S0021364010010078