The Quantuam Melting Transitions with the Magnetic Field in Weakly Disordered Josephson Junction Arrays

Abstract:

Using the resistively shunted junction model, we study the magnetic field induced dynamic melting transitions of a current-driven vortex system in two-dimensional weakly disordered Josephson junction arrays at zero temperature. From the unified model simulations, we find that the intrinsic quantum vortex liquid (QVL) phenomenon, which consistent with the recent experimental reports in disordered and superconducting MoGe films. The enhancement of critical current in the QVL phase arises from intrinsic quantum fluctuations in the moving vortex flow.

• Periodical: Applied Mechanics and Materials (Volumes 380-384)
• Pages: 4845-4848
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.380-384.4845
• Online since: August 2013
• Authors: Zhi Gang Zhao, Cun Li Dai, Lun Wu Zeng
• Keywords: JJAs, Magnetic Field, Quantum Melting

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