350 citations · 1.4k across the 21 of their papers we have counts for
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Fermi Surface of Metallic VO from Angle-Resolved Photoemission: Mid-level Filling of Bands
I. Lo Vecchio, J. D. Denlinger, O. Krupin +5
Using angle resolved photoemission spectroscopy (ARPES) we report the first band dispersions and distinct features of the bulk Fermi surface (FS) in the paramagnetic metallic phase…
Phase separation in the non-equilibrium Verwey transition in magnetite
Francesco Randi, Ignacio Vergara, Fabio Novelli +9
We present equilibrium and out-of-equilibrium studies of the Verwey transition in magnetite. In the equilibrium optical conductivity, we find a step-like change at the phase transi…
Soft X-ray Angle Resolved Photoemission with Micro Positioning Techniques for Metallic VO
H. Fujiwara, T. Kiss, Y. K. Wakabayashi +17
We have performed soft-X-ray angle resolved photoemission for metallic VO. Combining a micro focus beam (40 x 65 m) and micro positioning techniques with a long work…
Evolution of the electronic structure of a Mott system across its phase diagram: an X-ray absorption spectroscopy study of (V(1-x)Crx)2O3
F. Rodolakis, J. -P. Rueff, M. Sikora +12
V2O3 is an archetypal system for the study of correlation induced, Mott-Hubbard metal-insulator transitions. Despite decades of extensive investigations, the accurate description o…
Lattice softening effects at the Mott critical point of Cr-doped VO
S. Populoh, P. Wzietek, R. Gohier +1
We have performed sound velocity measurements in (VCr)O in the vicinity of the critical point of the first order Mott transition line. The pressure sweeps at co…
Inequivalent routes across the Mott transition in V2O3 explored by X-ray absorption
F. Rodolakis, P. Hansmann, J. -P. Rueff +14
The changes in the electronic structure of V2O3 across the metal-insulator transition induced by temperature, doping and pressure are identified using high resolution x-ray absorpt…
Valence band electronic structure of V2O3: identification of V and O bands
E. Papalazarou, Matteo Gatti, M. Marsi +14
We present a comprehensive study of the photon energy dependence of the valence band photoemission yield in the prototype Mott-Hubbard oxide V2O3. The analysis of our experimental…
Quasiparticle evolution and pseudogap formation in V2O3: An infrared spectroscopy study
L. Baldassarre, A. Perucchi, D. Nicoletti +10
The infrared conductivity of V2O3 is measured in the whole phase diagram. Quasiparticles appear above the Neel temperature TN and eventually disappear further enhancing the tempera…
Zener double exchange from local valence fluctuations in magnetite
R. J. McQueeney, M. Yethiraj, S. Chang +4
Magnetite (FeO) is a mixed valent system where electronic conductivity occurs on the B-site (octahedral) iron sublattice of the spinel structure. Below K, a…
Photoemission study of (VM)O (M=Cr, Ti)
S. -K. Mo, H. -D. Kim, J. D. Denlinger +8
We present high-resolution bulk-sensitive photoemission spectra of (VM)O (M=Cr, Ti). The measurements were made for the paramagnetic metal (PM), paramagnetic in…
Investigation of the presence of charge order in magnetite by measurement of the spin wave spectrum
R. J. McQueeney, M. Yethiraj, W. Montfrooij +3
Inelastic neutron scattering results on magnetite (Fe3O4) show a large splitting in the acoustic spin wave branch, producing a 7 meV gap midway to the Brillouin zone boundary at q…
Structural dichroism in the antiferromagnetic insulating phase of VO
C. Meneghini, S. Di Matteo, C. Monesi +6
We performed near-edge x-ray absorption spectroscopy (XANES) at V K edge in the antiferromagnetic insulating (AFI) phase of a 2.8% Cr-doped VO single crystal. Linear dichro…
Universality and Critical Behavior at the Mott transition
P. Limelette, A. Georges, D. Jerome +3
We report conductivity measurements of Cr-doped V2O3 using a variable pressure technique. The critical behavior of the conductivity near the Mott-insulator to metal critical endpoi…
Filling of the Mott-Hubbard gap in the high temperature photoemission spectrum of (V_0.972Cr_0.028)_2O_3
S. -K. Mo, H. -D. Kim, J. W. Allen +8
Photoemission spectra of the paramagnetic insulating (PI) phase of (V_0.972Cr_0.028)_2O_3, taken in ultra high vacuum up to the unusually high temperature (T) of 800 K, reveal a pr…
Prominent quasi-particle peak in the photoemission spectrum of the metallic phase of V_2O_3
S. -K. Mo, J. D. Denlinger, H. -D. Kim +14
We present the first observation of a prominent quasi-particle peak in the photoemission spectrum of the metallic phase of V_2O_3 and report new spectral calculations that combine…
High Resolution Bulk Sensitive Photoemission Study of the Metal-Insulator Transition in (V,Cr)2O3 : Comparison to LDA+DMFT Theory
Hyeong-Do Kim, J-H. Park, J. W. Allen +7
%auto-ignore This paper has been withdrawn by the authors because its results have been superceded by new experimental data and new theory presented in S.-K. Mo et al., cond-mat/02…
Phase transition in a magnetic field in V2-yO3 (y=0 and 0.04)
Wei Bao, A H Lacerda, J D Thompson +2
The effect of a magnetic field on the two long-range-ordered magnetic phases, the collinear insulating antiferromagnetic (AFI) and the incommensurate metallic transverse spin densi…
Magnetic correlations and quantum criticality in the insulating antiferromagnetic, insulating spin liquid, renormalized Fermi liquid, and metallic antiferromagnetic phases of the Mott system V_2O_3
Wei Bao, C. Broholm, G. Aeppli +6
Magnetic correlations in all four phases of pure and doped vanadium sesquioxide V_2O_3 have been examined by magnetic thermal neutron scattering. While the antiferromagnetic insula…
Dramatic Switching of Magnetic Exchange in a Classic Transition Metal Oxide: Evidence for Orbital Ordering
Wei Bao, C. Broholm, G. Aeppli +3
Spin correlations in metallic and insulating phases of and its derivatives are investigated using magnetic neutron scattering. Metallic samples have incommensurate spin co…