This title appears in the Scientific Report :
2008
Please use the identifier:
http://dx.doi.org/10.1140/epjb/e2008-00108-y in citations.
Coulomb correlations do not fill the e'_g hole pockets in Na_{0.3}CoO_2
Coulomb correlations do not fill the e'_g hole pockets in Na_{0.3}CoO_2
There exists presently considerable debate over the question whether local Coulomb interactions can explain the absence of the small e'(g) Fermi surface hole pockets in photoemission studies of Na0.3CoO2. By comparing dynamical mean field results for different single particle Hamiltonians and e...
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Personal Name(s): | Liebsch, A. |
---|---|
Ishida, H. | |
Contributing Institute: |
Quanten-Theorie der Materialien; IFF-1 |
Published in: | The @European physical journal / B, 61 (2008) S. 405 |
Imprint: |
Berlin
Springer
2008
|
Physical Description: |
405 |
DOI: |
10.1140/epjb/e2008-00108-y |
Document Type: |
Journal Article |
Research Program: |
Kondensierte Materie |
Series Title: |
European Physical Journal B
61 |
Subject (ZB): | |
Publikationsportal JuSER |
There exists presently considerable debate over the question whether local Coulomb interactions can explain the absence of the small e'(g) Fermi surface hole pockets in photoemission studies of Na0.3CoO2. By comparing dynamical mean field results for different single particle Hamiltonians and exact diagonalization as well as quantum Monte Carlo treatments, we show that, for realistic values of the Coulomb energy U and Hund exchange J, the e'(g) pockets can be slightly enhanced or reduced compared to band structure predictions, but they do not disappear. |