Thermodynamic evidence for the Bose glass transition in twinned YBa2Cu3 O7-δ crystals

D. J. Pérez-Morelo; E. Osquiguil; A. B. Kolton; G. Nieva; I. W. Jung; D. López; H. Pastoriza

doi:10.1103/PhysRevB.92.020510

Thermodynamic evidence for the Bose glass transition in twinned YBa2Cu3 O7-δ crystals

D. J. Pérez-Morelo, E. Osquiguil, A. B. Kolton, G. Nieva, I. W. Jung, D. López, H. Pastoriza

Electrical Engineering

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Abstract

We used a micromechanical torsional oscillator to measure the magnetic response of a twinned YBa2Cu3O7-δ single crystal disk near the Bose glass transition. We observe an anomaly in the temperature dependence of the magnetization consistent with the appearance of a magnetic shielding perpendicular to the correlated pinning of the twin boundaries. This effect is related to the thermodynamic transition from the vortex liquid phase to a Bose glass state.

Original language	English (US)
Article number	020510
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	92
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevB.92.020510
State	Published - Jul 21 2015

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.92.020510

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title = "Thermodynamic evidence for the Bose glass transition in twinned YBa2Cu3 O7-δ crystals",

abstract = "We used a micromechanical torsional oscillator to measure the magnetic response of a twinned YBa2Cu3O7-δ single crystal disk near the Bose glass transition. We observe an anomaly in the temperature dependence of the magnetization consistent with the appearance of a magnetic shielding perpendicular to the correlated pinning of the twin boundaries. This effect is related to the thermodynamic transition from the vortex liquid phase to a Bose glass state.",

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AU - Pérez-Morelo, D. J.

AU - Osquiguil, E.

AU - Kolton, A. B.

AU - Nieva, G.

AU - Jung, I. W.

AU - López, D.

AU - Pastoriza, H.

PY - 2015/7/21

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N2 - We used a micromechanical torsional oscillator to measure the magnetic response of a twinned YBa2Cu3O7-δ single crystal disk near the Bose glass transition. We observe an anomaly in the temperature dependence of the magnetization consistent with the appearance of a magnetic shielding perpendicular to the correlated pinning of the twin boundaries. This effect is related to the thermodynamic transition from the vortex liquid phase to a Bose glass state.

AB - We used a micromechanical torsional oscillator to measure the magnetic response of a twinned YBa2Cu3O7-δ single crystal disk near the Bose glass transition. We observe an anomaly in the temperature dependence of the magnetization consistent with the appearance of a magnetic shielding perpendicular to the correlated pinning of the twin boundaries. This effect is related to the thermodynamic transition from the vortex liquid phase to a Bose glass state.

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Thermodynamic evidence for the Bose glass transition in twinned YBa2Cu3 O7-δ crystals

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