Effects of ferromagnetic fluctuations on the electric and thermal transport properties in NaxCoO2

  title={Effects of ferromagnetic fluctuations on the electric and thermal transport properties in NaxCoO2},
  author={Yuki Yanagi and Yoshiaki Ono},
  journal={arXiv: Strongly Correlated Electrons},
  • Y. YanagiY. Ono
  • Published 3 June 2009
  • Physics
  • arXiv: Strongly Correlated Electrons
We investigate the electronic states and the transport properties of the CoO2 plane in NaxCoO2 on the basis of the two-dimensional triangular lattice 11-band d-p model by using the fluctuation exchange approximation, where we consider the Coulomb interaction between the t2g electrons on a Co site. It is found that all of the effective mass of quasiparticles, the resistivity, the thermoelectric power and the uniform spin susceptibility increase with increasing x for x > 0.6. This implies that… 
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