Destruction of the small Fermi surfaces in Na$_x$CoO$_2$ by Na disorder

Details Destruction of the small Fermi surfaces in Na$_x$CoO$_2$ by Na disorder Destruction of the small Fermi surfaces in Na$_x$CoO$_2$ by Na disorder

2006-03-31

arxiv.org/abs/cond-mat/0604002v1

Physics

Condensed Matter

Superconductivity

4 pages, 2 figs

Scientific paper

10.1103/PhysRevLett.97.016404

We show using density functional calculations that the small $e_g'$ Fermi
surfaces in Na$_x$CoO$_2$ are destroyed by Na disorder. This provides a means
to resolve the prediction of these sections in band structure calculations with
their non-observation in angle resolved photoemission experiments.

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