Structure and Superconductivity of Tl2Ca3Ba2Cu4Ox Single Crystals

Autor: Hiromi Takei, Toshihiro Kotani, Kouji Tada, T. Nishikawa
Rok vydání: 1990
Předmět:
Zdroj: Advances in Superconductivity II ISBN: 9784431681199
DOI: 10.1007/978-4-431-68117-5_53
Popis: The crystal structure and superconducting properties of Tl2Ca3Ba2Cu4Ox single crystals were investigated. Based on the preliminary study of phase relations in the Tl2Can-1Ba2CunOx system, 2324-phase single crystals with dimensions of from 0.5 to 1mm2 were grown by the flux method. The superconducting onset transition temperatures of grown crystals, determined by DC SQUID magnetometer, were 113 to 115K. According to anQX-ray diffraction measurement, the lattice constant of the c-axis was 42.0A, and the crystal was confirmed to be single phase of 2324. The results of a high-resolution transmission electron microscopic study are also reported.
Databáze: OpenAIRE