Scientific article

Calorimetric study of YBa2Cu3O6.92 in very high magnetic field: 27 Tesla

Published inPhysica C: Superconductivity and Its Applications, vol. 235-240, p. 1763-1764
Publication date1994

The specific heat of a large YBa2Cu3O6.92 single crystal (m≈150 mg) was measured between 0 and 27 Tesla. In contrast with previous results obtained at lower fields, the specific heat above Tc is field-dependent up to 100 K. The high magnetic fields combined with a narrow transition width (ΔTc10–90%=0.15 K in ac susceptibility) allow an accurate analysis of the different contributions in the vicinity of Tc(H=0). 2D–3D gaussian and 3D-xy critical fluctuations models are compared. A positive curvature of Hc2(T) line is observed up to 10 Tesla. The compatibility of the calorimetric and magnetic measurements [1] through Maxwell's relation is also verified.

Citation (ISO format)
JANOD, E. et al. Calorimetric study of YBa<sub>2</sub>Cu<sub>3</sub>O<sub>6.92</sub> in very high magnetic field: 27 Tesla. In: Physica C: Superconductivity and Its Applications, 1994, vol. 235-240, p. 1763–1764. doi: 10.1016/0921-4534(94)92103-2
Main files (1)
Article (Published version)
ISSN of the journal0921-4534

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