Magnetic Properties of Bi- and Tl-Based Single Crystals

Autor:	Kengo Ohkura, Kouji Tada, Toshihiro Kotani, Hiromi Takei
Rok vydání:	1990
Předmět:	Crystal Materials science Logarithm Creep Condensed Matter::Superconductivity Phase (matter) Analytical chemistry Flux Crystal growth Magnetic relaxation Potential energy
Zdroj:	Advances in Superconductivity II ISBN: 9784431681199
DOI:	10.1007/978-4-431-68117-5_144
Popis:	Crystal growth and magnetic relaxation of Tl2Ba2CaCu2Ox, Tl2Ba2Ca2Cu3Ox, (Tl,Bi,Pb)Sr2CaCu2Ox and Bi2Sr2CaCu2Ox single crystals were investigated. According to a study on the phase relations of these systems, four kinds of mm-sized single crystals with different transition temperatures were grown by the self-flux method. The single crystals showed a large magnetic relaxation, which was approximately linear with the logarithm of the time. Based on the thermally activated flux creep model, the effective flux-pinning potential energy for each crystal was estimated from these results.
Databáze:	OpenAIRE
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