Transport properties of YBa2Cu3O7-y at high temperatures

✍ Scribed by J. Molenda; A. Stokłosa; T. Ba̧k

• Publisher: Elsevier Science
• Year: 1991
• Tongue: English
• Weight: 672 KB
• Volume: 175
• Category: Article
• ISSN: 0921-4534
• DOI: 10.1016/0921-4534(91)90264-y

✦ Synopsis

This paper presents the results of the investigations on electrical conductivity and thermoelectric power of (\mathrm{YBa}{2} \mathrm{Cu}{3} \mathrm{O}_{7-y}) as a function of temperature ( (680-1170 \mathrm{~K}) ) and oxygen pressure ( (10^{5}-30 \mathrm{~Pa}) ) at thermodynamic equilibrium.

The analysis of electrical properties as a function of the deviation from stoichiometry allowed one to determine the type of dominating electronic defects and transport properties in different temperatures and nonstoichiometry. A qualitative model for the electronic structure of (\mathrm{YBa}{2} \mathrm{Cu}{3} \mathrm{O}_{7-y}) at high temperatures is proposed.