High oxygen pressure synthesis of the PrBa2Cu4O8 compound
| Autor: | Z. Guo, K. Kawamoto, Uichiro Mizutani, Nobuyoshi Yamada, Shigeru Horii, Yuh Yamada, Izumi Hirabayashi, Yasuharu Kodama |
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| Rok vydání: | 1994 |
| Předmět: |
Superconductivity
Materials science Magnetic moment Annealing (metallurgy) Transition temperature Analytical chemistry Energy Engineering and Power Technology Condensed Matter Physics Magnetic susceptibility Electronic Optical and Magnetic Materials Metal Magnetization Nuclear magnetic resonance Electrical resistivity and conductivity visual_art visual_art.visual_art_medium Electrical and Electronic Engineering |
| Zdroj: | Physica C: Superconductivity. 231:131-136 |
| ISSN: | 0921-4534 |
| DOI: | 10.1016/0921-4534(94)90152-x |
| Popis: | The PrBa 2 Cu 4 O 8 compound with a trace of BaCuO 3 and PrBaO 3 was synthesized for the first time by annealing at the temperature or 957°C under 5 atm oxygen pressure. The content of the PrBaO 3 is estimated to be less than 0.2%. The superconducting transition was not detected down to 2 K. The magnitude of the resistivity and its temperature dependence are consistent with the possession of a metallic character in this compound in contrast to the semiconducting behavior reported previously for the PrBa 2 Cu 3 O 7- δ compound. The effective magnetic moment, μ eff , estimated from the Curie-Weiss fitting to the magnetic susceptibility data, turns out to be 2.67 μ B . |
| Databáze: | OpenAIRE |
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