6 papers
Spectral functions in doped transition metal oxides
D. D. Sarma, S. R. Barman, H. Kajueter +1
We present experimental photoemission and inverse photoemission spectra of SrTiO representing electron doped systems. Photoemission spectra in presence of electron d…
Band Degeneracy and Mott Transition: Dynamical Mean Field Study
Henrik Kajueter, Gabriel Kotliar
We investigate the Mott transition in infinite dimensions in the orbitally degenerate Hubbard model. We find that the qualitative features of the Mott transition found in the one b…
Evolution of photoemission spectral functions in doped transition metal oxides
H. Kajueter, G. Kotliar, D. D. Sarma +1
We discuss the experimental photoemission and inverse photoemission of early transition metal oxides, in the light of the dynamical mean field theory of correlated electrons which…
Transfer of Spectral Weight in Spectroscopies of Correlated Electron Systems
M. J. Rozenberg, G. Kotliar, H. Kajueter
We study the transfer of spectral weight in the photoemission and optical spectra of strongly correlated electron systems. Within the LISA, that becomes exact in the limit of large…
A New Iterative Perturbation Scheme for Lattice Models with Arbitrary Filling
Henrik Kajueter, Gabriel Kotliar
We derive a new perturbation scheme for treating the large d limit of lattice models at arbitrary filling. The results are compared with exact diagonalization data for the Hubbard…
Optical Conductivity in Mott-Hubbard Systems
M. J. Rozenberg, G. Kotliar, H. Kajueter +4
We study the transfer of spectral weight in the optical spectra of a strongly correlated electron system as a function of temperature and interaction strength. Within a dynamical m…