Hexatic phase in thin-film superconductors

✍ Scribed by V.N. Ryzhov; E.E. Tareyeva

• Book ID: 103946299
• Publisher: Elsevier Science
• Year: 1993
• Tongue: English
• Weight: 506 KB
• Volume: 205
• Category: Article
• ISSN: 0921-4534
• DOI: 10.1016/0921-4534(93)90168-p

✦ Synopsis

The hexatic phase-isotropic vortex fluid phase boundaries are calculated for the thin-film superconductors high-T¢ YBa2CuaO7 and low-T c Nb, in the absence of strong pinning. It is shown that decreasing the thickness of the slab leads to the decreasing of the transition temperature. As a result of strong thermal fluctuations, the transition between hexatic phase and isotropic vortex fluid in thin-film high-To superconductors occurs at much higher fields than in low-To ones.