Preparation of pure Tl2Ba2CuO6+x: the contribution of phase equilibrium studies

and in [1, 2] effectively reduces to the model of the superconducting chain array with a Josephson cou- pling, and we can use the advantages of this model for the

Secondary modes can however favor the relevance in the order parameter free energy expansion of higher order terms, which may finally stabilize phases (of lower

du développement de Landau de l’énergie libre, qui mettent en jeu les phases et les amplitudes des harmoniques un, deux et trois de la

measurements used to test the superconducting behaviour show sharp transitions, about 2 K wide, with onset temperatures near 91 K, when annealing is performed in a

determination of the transition temperature of the superconducting compound YBa2Cu3Ox yield the phase diagram of Tc versus the oxygen content for

The computer studies of the required magnetic field were performed by choosing the curvature of the separate coil frag- ments and the configuration of the exter nal contour and

At the phase transition, the disappearance of the [001] correlation due to the asymmetry of the Nb-0-Nb bound is related to the abrupt change in the value of k(0-Nb) along

Symmetry transition in the cubic phase of a ternary surfactant