INVESTIGADORES
NIEVA Gladys Leonor
artículos
Título:
Thermodynamic evidence for the Bose glass transition in twinned YBa2Cu3O7−δ crystals
Autor/es:
D. J. PÉREZ-MORELO; E. OSQUIGUIL; A. B. KOLTON; G. NIEVA; I. W. JUNG; D. LÓPEZ; H. PASTORIZA
Revista:
PHYSICAL REVIEW B
Editorial:
AMER PHYSICAL SOC
Referencias:
Lugar: New York; Año: 2015 vol. 92 p. 205101 - 205104
ISSN:
1098-0121
Resumen:
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.
