𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Sign reversal of the fluctuation Hall conductivity in YBa2Cu3O7−δ superconductor

✍ Scribed by A.V. Samoilov

Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
136 KB
Volume
194-196
Category
Article
ISSN
0921-4526

No coin nor oath required. For personal study only.

✦ Synopsis

The Hall and longitudinal resistivities, Pxv and p~, respectively, of the YBa2Cu3OT_, epitaxial II changes films have been measured at 80 K< T < 185 K. The fluctuation Hall conductivity cr~y its sign at temperatures T*(H)> Tc(H=O). The T-dependence of crxyl(Z~ ,If" lz where c~ll is the fluctuation longitudinal conductivity, has a remarkable minimum near To(H). These features can reflect an unusual behavior of the imaginary part of the relaxation time of the order parameter in the vicinity of the transition temperature.

📜 SIMILAR VOLUMES

Fluctuation induced paraconductivity in
Fluctuation induced paraconductivity in YBa2Cu3O7–δ
✍ V.P.N. Padmanaban; K. Shahi 📂 Article 📅 1991 🏛 Elsevier Science 🌐 English ⚖ 714 KB

The superconductivity in various high quality polycrystalline YBa2Cu@-6 samples with very sharp transitions have been studied. Two different fitting procedures to the normal-state resistivity at high temperatures have been used to calculate the background resistivity. The Anderson-Zou fit to the dat

Fluctuation effects in oxygen depleted Y
Fluctuation effects in oxygen depleted YBa2Cu3O7−δ
✍ S.N. Bhatia; C.P. Dhard 📂 Article 📅 1994 🏛 Elsevier Science 🌐 English ⚖ 238 KB

Due to superstructural ordering of oxygen vacancies at the Cu-O chain sites in YBa2CuaOr\_6, O1 and 0II phases are formed corresponding to the T¢ around 90 K and 60 K. The nature of fluctuations including the pair breaking effects, change in interlayer couplings and other parameters have been studie