Abstract
The electrical resistivity of single crystals of YBa2Cu3O7−δ with 1 and 3.5% Zn replacing copper has been studied in magnetic field up to 12 T parallel to thec-axis. From the onset ofc-axis resistance, ocurring at a higher temperature than for the in-plane resistivity, the phase diagram can be determined which separates the region of intact vortex tubes from that of decorrelated vortex segments moving independently in differentab-planes of the crystal. This phase separation occurs at a larger magnetic field for comparable temperatures and concentrations when compared to Fe-doped Y-123. This result and a quantitative description in terms of a published model for Josephson tunneling between parallel planes, show that Zn-doping increases anisotropy only weakly in contrast to Fe-doped Y-123.
Similar content being viewed by others
References
R. Busch, G. Ries, H. Werther, G. Kreiselmeyer, and G. Saeman-Ischenko, Phys. Rev. Lett. 69 (1992) 522.
H. Safar et al. Phys. Rev. B 46 (1992) 328.
H. Safar et al. Phys. Rev. Lett. 72 (1994) 1272.
Yu. Eltsev, W. Holm, and Ö. Rapp, Phys. Rev. B 49 (1994) 12333.
Yu. Eltsev and Ö. Rapp, Phys. Rev. B 51 (1995) 9419.
L. L. Daemen, L. N. Bulaevski, M. P. Maley, and Y. Coulter, Phys. Rev. Lett. 70 (1993) 1167.
T. R. Chien et al. Physica C 229 (1994) 273.
J. Axnäs, W. Holm, Yu. Eltsev, and Ö. Rapp, Phys. Rev. B 53 (1996) R3003.
S. Zagoulaev, P. Monod, and J. Jégoudez, Phys. Rev. B 52 (1995) 10474.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Eltsev, Y., Rapp, Ö. Weakly increasing anisotropy in Zn doped YBa2Cu3O7−δ . Czech J Phys 46 (Suppl 3), 1557–1558 (1996). https://doi.org/10.1007/BF02562893
Issue Date:
DOI: https://doi.org/10.1007/BF02562893