Behaviour of superconductivity energetic characteristics in electron-doped cuprates. A simple model

Abstract

A simple model to describe the energetic phase diagram of electron-doped cuprate superconductor is developed. Interband pairing operates between the UHB and the defect states created by doping and supplied by both extincting HB-s. Two defect subbands correspond to the ($\pi ,0$) and ($\pi /2,\pi /2$) momentum regions. Extended doping quenches the bare normal state gaps (pseudogaps). Maximal transition temperature corresponds to overlapping bands ensemble intersected by the chemical potential. Illustrative results for $T_c$, pseudo- and superconducting gaps are calculated on the whole doping scale. Major characteristics features on the phase diagram are reproduced. Anticipated manifestation of gaps doping dynamics is discussed.

10 pages, 3 figures

References in corpus (3)

• Evidence for complex order parameter in La_{1.83}Sr_{0.17}CuO_4
• Electronic Structure of Electron-doped Sm1.86Ce0.14CuO4: Strong `Pseudo-Gap' Effects, Nodeless Gap and Signatures of Short Range Order
• The electronic pseudogap in optimally doped NCCO