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

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

2007-05-23

arxiv.org/abs/0705.3351v1

Physics

Condensed Matter

Superconductivity

10 pages, 3 figures

Scientific paper

10.1016/j.physleta.2007.08.035

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.

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