2013/12/24 by A. M. Gabovich, Alexander M. Gabovich, А. И. Войтенко +1
Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Charge density #Charge density wave #Condensed matter physics #Cuprate #Iron-based superconductors research #Physics #Physics of Superconductivity and Magnetism #Pseudogap #Quantum mechanics #Quantum tunnelling #Quasiparticle #Scanning tunneling microscope #Superconductivity #cond-mat.supr-con
paper · pdf · doi:10.1016/j.physc.2014.05.001
14 pages, 5 figures
arxiv created 2013/12/24 · openalex publication_date 2014/05/10 · arxiv updated 2015/06/18 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
Conductance-voltage characteristics (CVCs) for non-symmetric tunnel junctions between d-wave superconductors with charge-density waves (CDWs) and normal metals were calculated. It was shown that they have a V-like form at small voltages V and are asymmetric at larger V owing to the presence of CDW peak in one of the V-branches. The spatial scatter of the dielectric (CDW) order parameter smears the CDW peak into a hump and induces a peak-dip-hump structure (PDHS) typical of CVCs observed for such junctions. At temperatures larger than the superconducting critical temperature, the PDHS evolves into a pseudogap depression. The results agree well with the scanning tunneling microscopy data for Bi2Sr2CaCu2O8+δ and YBa2% Cu3O7-δ.