Orbital Symmetry and Electron Correlation inNaxCoO2

Orbital symmetry and electron correlation in NaxCoO2.

Measurements of polarization-dependent soft x-ray absorption reveal that the electronic states determining the low-energy excitations of NaxCoO2 have predominantly a(1g) symmetry with significant O 2p character. In contrast to the prediction of band theory, doping-dependent O 1s x-ray absorption shows a large transfer of spectral weight, providing spectral evidence for strong electron correlati...

Electron Correlation in Orbital Dependent Functionals

Effect of electron correlation on superconducting pairing symmetry

The role of electron correlation on different pairing symmetries are discussed in details where the electron correlation has been treated within the slave boson formalism. It is shown that for a pure s or pure d wave pairing symmetry, the electronic correlation suppresses the s wave gap magnitude (as well as the Tc) at a faster rate than that for the d wave gap. On the otherhand, a complex orde...

Symmetry breaking in a simple electron–phonon model with electron correlation

Spin-orbital Motion: Symmetry and Dynamics

We present the applications of variational–wavelet approach to nonlinear (rational) model for spin-orbital motion: orbital dynamics and Thomas-BMT equations for classical spin vector. We represent the solution of this dynamical system in framework of periodical wavelets via variational approach and multiresolution.