Abstract
Ac inductance techniques are commonly used to determine transition temperatures and magnetization versus temperature for superconductors by measurement of the real part of the sample susceptibility χ′. The imaginary or absorptive component of the susceptibility χ″ can also be measured by these techniques. The latter typically shows a peak versus temperature for high temperature superconductors (HTSC) which decreases in temperature as the strength of an applied dc magnetic field increases. The curve of the temperature of the peak in χ″ versus dc magnetic field is called the irreversibility line IL. The IL is sometimes interpreted as dividing magnetically reversible from nonreversible regions in the H-T phase diagram of a superconductor. The temperature dependence of the IL is dependent upon the frequency of the measuring ac field, sometimes strongly so, and is different for different HTSC materials as well as for different forms of the same compound. In this work data is presented for the IL of a variety of samples of YBaCuO, BiSrCaCuO, and TIBaCaCuO measured over a frequency range of 0.1 to 20kHz in dc magnetic fields up to 400 Oe. The dependence of the IL on measurement frequency, ac field strength, demagnetizing factors, and sample diameter is discussed in terms of superconductive glass/flux lattice melting/thermally activated flux flow theories, with particular emphasis upon the IL low frequency behavior.
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References
D. Schoenberg, Pro. Camb. Phil. Soc. 33, 559 (1937).
P. Dubots and J. Cave, Cryogenics 28, 661 (1988).
D. X. Chen, J. Nogues, and K. V. Rao, Cryogenics 29, 800 (1989).
S. T. Sekula, J. Appl. Phy. 42, 16 (1971).
J. R. Clem, H. R. Kerchner, and S. T. Sekula, Phy. Rev. B14, 1893 (1976).
R. B. Flippen and T. R. Askew, J. Appl. Phy. 67, 4515 (1990).
M. Nikolo and R. B. Goldfarb, Phy. Rev. B39, 6615 (1989).
A. P. Malozemoff, T. K. Worthington, Y. Yeshurun, F. Holtzberg, and P. H. Kes, Phy. Rev. B38, 7203 (1988).
T. W. Worthington, Y. Yeshurun, A. P. Malozemoff, R. M. Yandrofski, F. H. Holtzberg, and J. R. Dinger, J. de Phys. 49, 2093 (1988).
R. B. Flippen and T. R. Askew, J. Appl. Phy. 64, 5908 (1988).
R. A. Hein, Phy. Rev. B32, 7539 (1986).
N.McN. Alford, J. D. Birchall, W. J. Clegg, M. A. Harmer, K. Kendali, and D. H. Jones, J. Materials Sci. 23, 761 (1988).
M. Subramanian, J. Calabrese, C. Torardi, J. Gopalakrishnan, T. Askew, R. Flippen, K. Morrissey, U. Chowdhry, and A. Sleight, Science 240, 495 (1988).
R. B. Goldfarb and J. V. Minervini, Rev. Sci. Inst. 55, 761 (1984).
C. C. Stoner, Phil. Mag. 36, 803 (1945).
T. T. M. Palstra, B. Batlogg, R. B. van Dover, L F. Schneemeyer, and J. V. Waszczak, Phy. Rev. B41, 6621 (1990).
K. A. Muller, M. Takashige, and J. G. Bednorz, Phy. Rev. Lett. 58, 1143 (1987).
M. R. Beasley, R. Labusch, and W. W. Webb, Phy. Rev. 181, 682 (1969).
P. H. Kes, J. Aarts, J. van den Berg, C. J. van den Beek, and J. Mydosh, Supercond. Sci. and Technol. 1, 242 (1989).
P. L. Gammel, LF. Schneemeyer, J. V. Waszczak, and D. J. Bishop, Phy. Rev. Lett. 61, 1666(1988).
P. L. Gammel, J. Appl. Phy. 67, 4676 (1990).
P. L. Gammel, L. F. Schneemeyer, and D. L. Bishop, Phy. Rev. Lett. 66, 953 (1991).
A. P. Malozemoff, Bull. M.R.S. 15, 53 (1990).
A. M. Campbell and J. E. Evetts, Adv. in Phy. 21, 298 (1972).
M. P. A. Fisher, Phy. Rev. Lett. 62,1415 (1989).
R. B. Flippen and T. R. Askew, Solid State Comm. 72, 337 (1989).
T. R. Askew, R. B. Flippen, K. J. Leary, and M. N. Kunchur, J. Mat. Research, June, 1991.
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Flippen, R.B. (1991). The Frequency Dependence of the AC Irreversibility Line of some High Temperature Superconductors. In: Hein, R.A., Francavilla, T.L., Liebenberg, D.H. (eds) Magnetic Susceptibility of Superconductors and Other Spin Systems. Springer, Boston, MA. https://doi.org/10.1007/978-1-4899-2379-0_17
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DOI: https://doi.org/10.1007/978-1-4899-2379-0_17
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