L. Craco

Orbital-selective insulator-metal transition in V 2 O 3 under external pressure

We present a detailed account of the physics of vanadium sesquioxide

Orbital switching and the first-order insulator-metal transition in paramagnetic V2O3

({\mathrm{V}}_{2}{\mathrm{O}}_{3})

VO2: A two-fluid incoherent metal?

, a benchmark system for studying correlation-induced metal-insulator transition(s). Based on a detailed perusal of a wide range of experimental data, we stress the importance of multiorbital Coulomb interactions in concert with first-principles local-density approximation (LDA) band structure for a consistent understanding of the insulator-metal (IM) transition under pressure. Using

Mott-Hubbard quantum criticality in paramagnetic CMR pyrochlores

\mathrm{LDA}+\mathrm{DMFT}

Optical and magneto-optical response of half-metallic manganites

(dynamical mean-field theory), we show how the IM transition is of the orbital selective type, driven by large changes in dynamical spectral weight in response to small changes in trigonal field splitting under pressure. Very good quantitative agreement with (i) the switch of orbital occupation and (ii)

Metallizing the mott insulator TiOCl by electron doping

S=1

Metal-insulator transition in rutile-based VO 2

at each

Dynamical correlations across the spin-state transition in La Co O 3

{V}^{3+}

Ab initio description of the diluted magnetic semiconductor Ga 1 − x Mn x As : Ferromagnetism, electronic structure, and optical response

site across the IM transition, and (iii) carrier effective mass in the paramagnetic phase, is obtained. Finally, using the

Re-examining the Verwey transition in Fe3O4

\mathrm{LDA}+\mathrm{DMFT}