Superconducting fluctuation in Bi2Sr2Ca2Cu3Ox

✍ Scribed by W. Schnelle; E. Braun; H. Broicher; H. Weiss; H. Geus; S. Ruppel; M. Galffy; W. Braunisch; A. Waldorf; F. Seidler; D. Wohlleben

• Publisher: Elsevier Science
• Year: 1989
• Tongue: English
• Weight: 960 KB
• Volume: 161
• Category: Article
• ISSN: 0921-4534
• DOI: 10.1016/0921-4534(89)90120-2

✦ Synopsis

Measurements of the resistivity, of the DC Meissner effect, oflhe isothermal magnetisation, of the specific heat, of the thermal expansion and of the Hall effect are reported for a high quality polycrystalline sample of the 2223 phase of the BiSrCaCuO family of high temperature superconductors. They are discussed in terms of critical fluctuations within + 10 K about Tc due to a very small coherence volume. Distinct features appear in the data at the Ginzburg-Landau transition temper~iture ( TeL = 107 K) and at the Kosterlitz-Thouless like temperature (T~r z 106 K).