Growth and properties of superconducting YBCO single crystals

✍ Scribed by Ruixing Liang; P. Dosanjh; D.A. Bonn; D.J. Baar; J.F. Carolan; W.N. Hardy

• Publisher: Elsevier Science
• Year: 1992
• Tongue: English
• Weight: 785 KB
• Volume: 195
• Category: Article
• ISSN: 0921-4534
• DOI: 10.1016/0921-4534(92)90073-l

✦ Synopsis

Large, high quality YBa&usOr_, (YBCO) single crystals have been grown by a flux method and characterized by low field magnetization, a-b plane resistivity, microwave surface resistance and heat capacity measurements. The crystals obtained are nearly free standing after crystal growth and are easily harvested. They have dimensions of up to 5 mm along the a-(b-) axis and up to 1 mm along the c-axis. After oxidation, the crystals show a superconducting transition at T,= 93.2 K with transition width, AT,, of < 0.25 K as determined by low field magnetization, a-b plane resistivity and heat capacity data. The heat capacity jump AC, of the superconducting transition is 6.9 mJ/ (g K).