Scientific article

Equilibrium diagram Tc(T;p(O2)) of Tl2Ba2CuO6

Published inPhysica B: Condensed Matter, vol. 194-196, p. 1947-1948
Publication date1994

Homogeneous Tl₂Ba₂CuOₓ ceramics were synthesized by a novel route allowing tight control of thallium losses, starting from Tl₂Ba₂O₅ precursors and using high gas pressures. Annealing followed by fast quenching into gallium allowed us to map the critical temperature (0 to 92 K) and the crystal symmetry (orthorhombic or tetragonal) in the (T;p(O₂)) plane. The orthorhombic phase is found to be stoichiometric, whereas the tetragonal phase has a homogeneity domain in the thallium concentration. The critical temperature, determined by the oxygen concentration, is not sensitive to the crystal structure. Selected physical properties of Tl₂Ba₂CuOₓ compounds are presented.

Citation (ISO format)
TRISCONE, Gilles et al. Equilibrium diagram T<sub>c</sub>(T;p(O<sub>2</sub>)) of Tl<sub>2</sub>Ba<sub>2</sub>CuO<sub>6</sub>. In: Physica B: Condensed Matter, 1994, vol. 194-196, p. 1947–1948. doi: 10.1016/0921-4526(94)91473-7
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Article (Published version)
ISSN of the journal0921-4526

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