2003/06/23 by I. Puica, W. Lang · 25 citations
Physics and Astronomy · #Advanced Condensed Matter Physics #Condensed matter physics #Critical field #Electric field #Electrical resistivity and conductivity #Gaussian #Hartree #High-temperature superconductivity #Magnetic field #Physics #Physics of Superconductivity and Magnetism #Quantum electrodynamics #Quantum mechanics #Rare-earth and actinide compounds #Superconductivity #cond-mat.supr-con
paper · pdf · doi:10.1103/physrevb.68.054517
published in Physical review. B, Condensed matter 68(5) (American Physical Society) · 11 pages, 2 figures, to be published in Phys. Rev. B
arxiv created 2003/06/23 · openalex publication_date 2003/08/18 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
The paraconductivity, originating from critical superconducting order-parameter fluctuations in the vicinity of the critical temperature in a layered superconductor, is calculated in the frame of the self-consistent Hartree approximation for an arbitrarily strong electric field and zero magnetic field. The paraconductivity diverges less steep towards the critical temperature in the Hartree approximation than in the Gaussian one, and it shows a distinctly enhanced variation with the electric field. Our results indicate that high electric fields can be effectively used to suppress order-parameter fluctuations in high-temperature superconductors.