2003/12/22 by Degang Zhang, C. S. Ting, Chia-Ren Hu +1 · 1 citation
Materials Science · Physics and Astronomy · #Andreev reflection #Anisotropy #Condensed matter physics #Conductance #Iron-based superconductors research #Josephson effect #Materials science #Metal #Physics #Physics of Superconductivity and Magnetism #Quantum and electron transport phenomena #Quantum mechanics #Quantum tunnelling #Superconductivity #Supercurrent #Transverse plane #cond-mat.supr-con
paper · pdf · doi:10.1103/physrevb.70.172508
4 pages, 4 figures
arxiv created 2003/12/22 · openalex publication_date 2004/11/29 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
The effect of a transverse supercurrent Is up to the thermodynamic critical current on the low-temperature conductance characteristics between a normal metal N and a clean s- or d-wave superconductor (S) is theoretically investigated, covering from metallic contact (z=0) to the tunneling limit (z⪢1). For d-wave S both (100) and (110) contacts are studied. Many features found are due to current-induced gap anisotropy and requires S to be in the clean limit. Near critical Is and for z\ensuremath≃1, a three-humped structure appears for both s-wave S and d-wave S with (100) contact, signaling onset of current-induced gaplessness on the Fermi surface where gap originally exists.