Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2011-11-03
Physics
Condensed Matter
Strongly Correlated Electrons
6 pages, 3 figures, accepted in Phys. Rev. B
Scientific paper
We present a combination of local density approximation (LDA) with the dynamical cluster approximation (LDA+DCA) in the framework of the full-potential linear augmented plane-wave method, and compare our LDA+DCA results for SrVO$_3$ to LDA with the dynamical mean field theory (LDA+DMFT) calculations as well as experimental observations on SrVO$_3$. We find a qualitative agreement of the momentum resolved spectral function with angle-resolved photoemission spectra (ARPES) and former LDA+DMFT results. As a correction to LDA+DMFT, we observe more pronounced coherent peaks below the Fermi level, as indicated by ARPES experiments. In addition, we resolve the spectral functions in the ${\bf K}_{0}=(0,0,0)$ and ${\bf K}_{1}=(\pi,\pi,\pi)$ sectors of DCA, where band insulating and metallic phases coexist. Our approach can be applied to correlated compounds where not only local quantum fluctuations but also spatial fluctuations are important.
Aichhorn Markus
Ferber Johannes
Foyevtsova Kateryna
Jeschke Harald O.
Lee Hunpyo
No associations
LandOfFree
Dynamical cluster approximation within an augmented plane-wave framework: Spectral properties of SrVO$_3$ does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Dynamical cluster approximation within an augmented plane-wave framework: Spectral properties of SrVO$_3$, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dynamical cluster approximation within an augmented plane-wave framework: Spectral properties of SrVO$_3$ will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-703075