Abstract
The details of magnetic phase diagram near Tc for H//c of a Bi2Sr2CaCu2O8 single crystal are clarified via new magnetization data. The irreversibility line is seen to terminate at a temperature T* where temperature dependent magnetization curves intersect. If this line is extrapolated above T*, it would merge into a new line designated as Ts (H) line. The dimensional-crossover temperature T2D(H), which is T* at high field, extrapolates to H=0 axis at a temperature much below the nominally determined Tc value. Our phase diagram appears to confirm the presence of key features predicted by a theoretical model incorporating vortex fluctuations.
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© 1995 Springer-Verlag Tokyo
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Yamaguchi, Y., Grover, A.K., Iga, F., Nishihara, Y. (1995). Vortex Phase Diagram near Tc via DC and AC Magnetization of BSCCO-2212 Crystal. In: Yamafuji, K., Morishita, T. (eds) Advances in Superconductivity VII. Springer, Tokyo. https://doi.org/10.1007/978-4-431-68535-7_45
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DOI: https://doi.org/10.1007/978-4-431-68535-7_45
Publisher Name: Springer, Tokyo
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