Synthesis, single-crystal structure, and superconductivity of the rubidium-substituted La2CuO4
β Scribed by P.M. Keane; D.G. Hinks; U. Geiser; J.M. Williams
- Publisher
- Elsevier Science
- Year
- 1994
- Tongue
- English
- Weight
- 496 KB
- Volume
- 226
- Category
- Article
- ISSN
- 0921-4534
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We report a phase separation study on high-quality single crystals of La2CuO4+x for two concentrations x= 0.03 and x= 0.04. The excess oxygen was loaded into the crystals at high oxygen pressure p= 3 kbar and temperature T= 650-700Β°C. The X-ray diffraction study of these crystals shows the presence
Single crystals of antiferromagnetic La2CuO4+ b (TN=250K) which show superconductivity ( Tc=32K ) with the Mcissner fraction of 9.1% were grown from a melt with excess of CuO. The electrical resistivity and the Hall effect have been measured on the as-grown and heat-treated samples under high magnet
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