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The “irreversibility line” of a Tl2Ba2CaCu2O8 single crystal: Evidence for a phase transition

✍ Scribed by B. Giordanengo; J.L. Genicon; A. Sulpice; J. Chaussy; R. Tournier; J.C. Frison; J.P. Chaminade; M. Pouchard; J. Etourneau

Publisher
Elsevier Science
Year
1990
Tongue
English
Weight
322 KB
Volume
165-166
Category
Article
ISSN
0921-4526

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✦ Synopsis

The irreversibility line H*(T) of a ThBa2CaCu20g single crystal varies as e-Trr0 and diverges below 20 K. 'These phenomena could be related to a breakdown field of a weak superconductivity induced in BaO-TlO-TIO-BaO layer blocks by superconducting CuO layer blocks. The magnetization at the transition can be calculated assuming the existence of a second order phase transition.

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