Characterization of the 105 K superconductor Tl2Ba2CaCu2O8 (“2212”)
1994; Elsevier BV; Volume: 194-196; Linguagem: Inglês
10.1016/0921-4526(94)91591-1
ISSN1873-2135
AutoresChristine Opagiste, G. Triscone, M. Couach, T.K. Jondo, Jean-Louis Jorda, Alain Junod, A.F. Khoder,
Tópico(s)Acoustic Wave Resonator Technologies
ResumoHomogeneous Tl1.8Ba2CaCu2O8 ceramics were synthesized by a novel route, starting from Tl2Ba2O5 precursors and using high gas pressures. This method allows tight control of thallium losses, resulting in dense, large-grained samples with sharp superconducting transitions above 105 K. Results of a characterization by X-ray diffraction, optical micrographs and micro-probe analysis are presented, together with selected physical properties.
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