Formation of d-wave superconducting order in a randomly doped lattice

Details Formation of d-wave superconducting order in a randomly doped lattice Formation of d-wave superconducting order in a randomly doped lattice

2001-04-30

arxiv.org/abs/cond-mat/0104581v1

Physics

Condensed Matter

Superconductivity

22 pages, 2 figures

Scientific paper

10.1063/1.1401186

We consider the interplay between superconducting coupling and dopant impurity scattering of charge carriers in planar square lattice systems and examine physical conditions (doping level, temperature, local symmetry of coupling and scattering potentials) necessary in this model system to obtain a d-wave superconducting order, like that observed in real doped cuprate HTSC materials. Using the Lifshitz model for the disorder introduced into system by dopants, we analyze also the non-uniform structure of such d-wave parameter, including both its magnitude and phase variation. The results indicate that d-wave superconductivity turns possible in a doped metal until it can be destroyed at too high doping levels.

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