2005/01/31 by Shiro Kawabata, Satoshi Kashiwaya, Yasuhiro Asano +1
Materials Science · Physics and Astronomy · #Iron-based superconductors research #Physics of Superconductivity and Magnetism #Quantum and electron transport phenomena #cond-mat.mes-hall #cond-mat.str-el #cond-mat.supr-con #quant-ph
paper · pdf · doi:10.1103/physrevb.72.052506
published as Phys. Rev. B 72 (2005) 052506 · 4 pages, 1 figure, comment and reference about recent experiment added
arxiv created 2005/02/01 · openalex publication_date 2005/08/19 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
The macroscopic quantum tunneling (MQT) in the current biased high-Tc superconductor Josephson junctions and the effect of the zero-energy bound states (ZES) on the MQT are theoretically investigated. We obtained the analytical formula of the MQT rate and showed that the presence of the ZES at the normal/superconductor interface leads to a strong ohmic quasiparticle dissipation. Therefore the MQT rate is noticeably inhibited compared with the c-axis junctions in which the ZES are completely absent.