The absence of a linear behaviour of the dependence of the resistance R(T ) over a temperature interval 77-300 K was observed for ceramic superconductors YBa 2 Cu 3 O 7-δ and thick polycrystalline films of the same composition with the addition of silver. A comparative analysis of the excess conduct
Fluctuation induced magneto-conductivity studies in YBa2Cu3O7−δ + xBaZrO3 composite high-Tc superconductors
✍ Scribed by Annapurna Mohanta; Dhrubananda Behera
- Publisher
- Elsevier Science
- Year
- 2010
- Tongue
- English
- Weight
- 854 KB
- Volume
- 470
- Category
- Article
- ISSN
- 0921-4534
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📜 SIMILAR VOLUMES
To study a behavior of the thermal conductivity near T c specific heat and thermal diffusivity of the YBa 2 Cu 3 O 7Àd high-T c ceramics were simultaneously measured. Close to T c = 92.30 K the thermal diffusivity and the thermal conductivity discovered minima and the specific heat -maximum. Quantit
Atomic force microscopy investigations on swift heavy ion (200 MeV Au) irradiated surfaces of a high T c single crystal YBa 2 Cu 3 O 7 À d are presented. Results obtained revealed an ion-induced erosion/sputtering clearly confirming our earlier observation on grain boundary dominated thin films. Apa
The thermal conductivities κ(T ) of Ag-doped YBa 2 Cu 3 O 7 sintered materials were measured for various Ag fractions up to f Ag = 0.67. By analyzing the κ(T ) data based on a proposed phenomenological model, the purity of doped Ag in YBa 2 Cu 3 O 7 could be determined.