The transport critical current density Jc has been measured in high quality poly-crystalline YBa2Cu3C7 as a function of temperature and for various sweeps of sub-Tesla applied magnetic fields. Large increases over the virgin response were observed in Jc at fields of a few hundred gauss and are attributed to trapped flux in the samples. The amount of trapped flux was measured and correlated to the change at Jc at various temperatures. The position of the magnetic irreversibility line was measured by field induced absorption shift in AC susceptibility. The various data are discussed in the context of the weak link conduction model.
This is a preview of subscription content, access via your institution.
Buy single article
Instant access to the full article PDF.
Tax calculation will be finalised during checkout.
J. G. Bednorz and K. A. Muller. Z. Phvs. B 64. 189 (1986).
K. A. Muller, M. Takashige, and J. C. Bednorz, Phys. Rev. Lett. 58 1143 (1987).
T. R. Dinger, T. K. Worthington, W. J. Gallagher, R. L. Sandstrom, Phys. Rev. Lett. 58 2687 (1987).
R. L. Peterson and J. W. Ekin, Phys. Rev. B37 9848 (1988)
P. Chaudhari et. al., Phys. Rev. Lett. 60 1653 (1988).
D. Dimos, P. Chaudhari, J. Mannhart, and F. K. LeGoues, Phys. Rev. Lett. 61, 219 (1988).
For review and reference list see A. P. Malozemoff, “Macroscopic Magnetic Properties of High Temperature Superconductors” in Physical Properties of High Temperature Superconductors I, edited by D. M. Ginsberg (World Science, London, 1989) ch. 3.
Proceedings of Workshop on High Tc Superconductors, Univ. of Birmingham, UK, May 1988 reported in Cryogenics 28 639 (1988).
J. E. Evens and B. A. Glowacki, Cryogenics 28, 641 (1988).
S. Matsuda et. al. in High Temperature Superconductors, edited by M. B. Brodsky et. al. (Mater. Res. Soc. Proc. 99, Pittsburgh PA 1988) p. 695
J. O. Willis, M. E. McHenry, M. P. Maley and H. Sheinberg IEEE Trans, on Magnetics 25 2502 (1989).
T. Hikata, K. Sato and H. Hitotsuyanagi, Jap. J. Appl. Phys. 28 L82 (1989).
A. P. Malozemoff et al. Phys. Rev. B. 38 7203 (1988) and References contained therein.
R. B. Flippen and T. R. Askew “Frequency Dependence of the Magnetic Irreversibility Line in High Temp. Superconductors”, to be published, Jour. Appl. Phys. (1990).
N. McN. Alford et. al. Nature 332, 58 (1988); Jour. Mat. Sci. 23., 761 (1988); J. Appl. Phys. 65, 2856 (1989).
Y. Kimura et al. IEEE Trans, on Magnetics 25, 2033 (1989)
S. Jin et. al. Phys. Rev. B 37 7850 (1988).
T. Van Duzer and C. W. Turner, Principles of Superconductive Devices and Circuits (Elsevier, New York, 1981) p. 152.
About this article
Cite this article
Askew, T.R., Flippen, R.B. Hysteretic Dependence of Critical Current on Applied Magnetic Field and Magnetic Irreversmujty Line Crossings in Polycrystalline YBa2Cu3C7 . MRS Online Proceedings Library 169, 939–942 (1989). https://doi.org/10.1557/PROC-169-939