Destruction of the Small Fermi Surfaces in Na x CoO 2 by Disorder

Department of Physics, University of California, Davis, Davis, California, United States
Physical Review Letters (Impact Factor: 7.51). 08/2006; 97(1):016404. DOI: 10.1103/PhysRevLett.97.016404
Source: PubMed


We show using density functional calculations that the small e'g Fermi surfaces in NaxCoO2 are destroyed by Na disorder. This provides a means to resolve the prediction of these sections in band structure calculations with their nonobservation in angle resolved photoemission experiments.

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