Power-law resistive behavior and KT transition of a weakly-frustrated 2D Josephson-junction array

✍ Scribed by Ryoko Sugano; Toshiyuki Onogi; Yoshimasa Murayama

• Publisher: Elsevier Science
• Year: 1991
• Tongue: English
• Weight: 238 KB
• Volume: 185-189
• Category: Article
• ISSN: 0921-4534
• DOI: 10.1016/0921-4534(91)90948-x

✦ Synopsis

Current-voltage (I-V) characteristics and m~netoresistance are ~culated for a frustrated 2D Josephson-junction array in weak frustration(f) regime via finite-temperature dynamic simulations.

There are two co-existing non-linear power-laws, V 0¢/~ and V cx fa, in which the univers~ jump of Kosterlitz-Thouless transition appears in the temperature dependence of both exponents, at Q = 3 and at fl ~ 2. Numerical and experimental results are in accord in high-To oxides under magnetic