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Magnetic Field Induced Phase Transitions in YBa2Cu4O8

T. Schneider·J. M. Singer
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Abstract

The $c$-axis resistivity measurements in YBa_2Cu_4O_8 from Hussey et al. for magnetic field orientations along the c-axis as well as within the ab-plane are analyzed and interpreted using the scaling theory for static and dynamic classical critical phenomena. We identify a superconductor to normal conductor transition for both field orientations as well as a normal conductor to insulator transition at a critical field H_c||a with dynamical critical exponent z=1, leading to a multicritical point where superconducting, normal conducting and insulating phases coexist.

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T. Schneider, J. M. Singer. 1998-12-17. Magnetic Field Induced Phase Transitions in YBa2Cu4O8. https://doi.org/10.1007/s100510050697

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