We present {\it ab initio} LDA+DMFT results for the many-particle density of states of VO2 on the metallic side of the strongly first-order (T-driven) insulator-metal transition. In strong contrast to LDA predictions, there is {\it no} remnant of even correlated Fermi liquid behavior in the correlated metal. Excellent quantitative agreement with published photoemission and X-ray absorption experiments is found in the metallic phase. We argue that the absence of FL-quasiparticles provides a natural explanation for the bad-metallic transport for T>340K. Based on this agreement, we propose that the I-M transition in VO2 is an orbital-selective Mott transition, and point out the relevance of orbital resolved one-electron and optical spectroscopy to resolve this outstanding issue.
@article{arxiv.cond-mat/0409027,
title = {VO2: a two-fluid incoherent metal?},
author = {M. S. Laad and L. Craco and E. Müller-Hartmann},
journal= {arXiv preprint arXiv:cond-mat/0409027},
year = {2015}
}