Bose-glass melting in the cubic (K,Ba)BiO3 high-Tc oxide with columnar defects - Archive ouverte HAL Access content directly
Journal Articles Physical Review B: Condensed Matter and Materials Physics (1998-2015) Year : 2000

Bose-glass melting in the cubic (K,Ba)BiO3 high-Tc oxide with columnar defects

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Abstract

The Bose-glass transition in the fully isotropic (K,Ba)BiO3 superconductor with columnar defects produced by irradiation with 7.2 GeV Ta ions was studied by transport and nonlinear susceptibility measurements. For fields smaller than the dose equivalent field Bφ, the Bose-glass transition line HBG(T) shifts progressively upwards with increasing dose, dHBG/dT∼1+αBφ1/2. The critical exponents have been deduced from the scaling properties of the transport measurements; we obtain z = 5.3±0.3 and ν=1.1±0.2. For tilted magnetic fields, the transition temperature scales as TBG(0)-TBG(θ)∼/sin(θ)1/ν, as recently suggested by Lidmar and Wallin. ©2000 The American Physical Society.
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hal-00725285 , version 1 (24-08-2012)

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  • HAL Id : hal-00725285 , version 1

Cite

Thierry Klein, A. Conde-Gallardo, I. Joumard, J. Marcus, C.J. van Der Beek, et al.. Bose-glass melting in the cubic (K,Ba)BiO3 high-Tc oxide with columnar defects. Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2000, 61 (6), pp.R3830. ⟨hal-00725285⟩
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