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Effect of oxygen content in the thermoelectric power of YBa2Cu3O7−δ

✍ Scribed by Isabel C. Santos; Elsa B. Lopes; Anto´nio P. Goncalves; Rui T. Henriques; Manuel Almeida; Paulo P. Freitas; M.O. Figueiredo

Publisher
Elsevier Science
Year
1988
Tongue
English
Weight
158 KB
Volume
153-155
Category
Article
ISSN
0921-4534

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✦ Synopsis

Measurements of the thermoelectric power in polycrystalline samples of YBa2Cu3OT-6 prepared by annealing and quenching from different temperatures are reported.

The thermoelectric power is found to be very sensitive to changing from values of 2 VK -I at 80OK, to values higher by more than one order of magnitude.

The sensitive dependence of the thermopower on the oxygen content can account for the large diversity of results reported in the literature.

📜 SIMILAR VOLUMES

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