821 citations · 2k across the 36 of their papers we have counts for
10 papers · 1 filter
Electronic correlation assisted ferroelectric metallic state in LiOsO
I. Lo Vecchio, G. Giovannetti, M. Autore +6
LiOsO has been recently identified as the first unambiguous "ferroelectric metal", experimentally realizing a prediction from 1965 by Anderson and Blount. In this work, we inve…
Surface effects on the Mott-Hubbard transition in archetypal VO
G. Lantz, M. Hajlaoui, E. Papalazarou +9
We present an experimental and theoretical study exploring surface effects on the evolution of the metal-insulator transition in the model Mott-Hubbard compound Cr-doped VO…
Optical properties of V2O3 in its whole phase diagram
I. Lo Vecchio, L. Baldassarre, F. D'Apuzzo +7
Vanadium sesquioxide V2O3 is considered a textbook example of Mott-Hubbard physics. In this paper we present an extended optical study of its whole temperature/doping phase diagram…
Spectral weight redistribution in (LaNiO3)n/(LaMnO3)2 superlattices from optical spectroscopy
P. Di Pietro, J. Hoffman, A. Bhattacharya +2
We have studied the optical properties of four (LaNiO)/(LaMnO) superlattices (SL) (=2, 3, 4, 5) on SrTiO substrates. We have measured the reflectivity at tem…
Optical conductivity of V4O7 across its metal-insulator transition
I. Lo Vecchio, M. Autore, F. D'Apuzzo +6
The optical properties of a V4O7 single crystal have been investigated from the high temperature metallic phase down to the low temperature antiferromagnetic insulating one. The te…
Phase diagram and optical conductivity of La1.8-xEu0.2SrxCuO4
M. Autore, P. Di Pietro, P. Calvani +5
La1.8-xEu0.2SrxCuO4 (LESCO) is the member of the 214 family which exhibits the largest intervals among the structural, charge ordering (CO), magnetic, and superconducting transitio…
Mott-Hubbard transition in V2O3 revisited
P. Hansmann, A. Toschi, G. Sangiovanni +4
The isostructural metal-insulator transition in Cr-doped V2O3 is the textbook example of a Mott-Hubbard transition between a paramagnetic metal and a paramagnetic insulator. We rev…
Pressure dependence of the single particle excitation in the charge-density-wave CeTe system
M. Lavagnini, A. Sacchetti, C. Marini +8
We present new data on the pressure dependence at 300 K of the optical reflectivity of CeTe, which undergoes a charge-density-wave (CDW) phase transition well above room temper…
Pressure dependence of the optical properties of the charge-density-wave compound LaTe
M. Lavagnini, A. Sacchetti, L. Degiorgi +7
We report the pressure dependence of the optical response of LaTe, which is deep in the charge-density-wave (CDW) ground state even at 300 K. The reflectivity spectrum is colle…
Infrared absorption from Charge Density Waves in magnetic manganites
P. Calvani, G. De Marzi, P. Dore +5
The infrared absorption of charge density waves coupled to a magnetic background is first observed in two manganites La{1-x}Ca{x}MnO{3} with x = 0.5 and x = 0.67. In both cases a B…