3D-2D phase transition in vortex lattice of layered high-temperature superconductors of BSCCO (Bi$_{1.7}$Pb$_{0.3}$Sr$_2$Ca$_2$Cu$_3$O$_4$)

J. G. Chigvinadze; A. A. Iashvili; T. V. Machaidze

doi:10.1016/s0375-9601(02)00195-0

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3D-2D phase transition in vortex lattice of layered high-temperature superconductors of BSCCO (Bi$_{1.7}$Pb$_{0.3}$Sr$_2$Ca$_2$Cu$_3$O$_4$)

J. G. Chigvinadze·A. A. Iashvili·T. V. Machaidze

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Abstract

Using the high-sensitive mechanical method of measuring the dissipation processes in superconductors, the 3D-2D phase transition in magnetic field was investigated in the vortex lattice of strongly anisotropic high-temperature superconductors of Bi(2223) system. It was shown that with the increase of external magnetic field the dissipation connected with a motion of vortexes relative to the crystal lattice of a sample, first increases, reaching the maximum and then with a further increase of the magnetic field sharply reduces as a result of pinning enhancement in connection with the transition of three-dimensional vortex system in quasi-two-dimensional "pancake" one.

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J. G. Chigvinadze, A. A. Iashvili, T. V. Machaidze. 2001-10-02. 3D-2D phase transition in vortex lattice of layered high-temperature superconductors of BSCCO (Bi$_{1.7}$Pb$_{0.3}$Sr$_2$Ca$_2$Cu$_3$O$_4$). https://doi.org/10.1016/s0375-9601(02)00195-0

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