29.3k citations · 47.2k across the 133 of their papers we have counts for
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Electronic structure and lattice dynamics of 1T-VSe: origin of the 3D-CDW
Josu Diego, D. Subires, A. H. Said +21
In order to characterize in detail the charge density wave (CDW) transition of 1-VSe, its electronic structure and lattice dynamics are comprehensively studied by means of x…
On the importance of measuring accurately LDOS maps using scanning tunneling spectroscopy in materials presenting atom-dependent charge order: the case of the correlated Pb/Si(111) single atomic layer
C. Tresca, T. Bilgeri, G. Menard +11
We show how to properly extract the local charge order in two-dimensional materials from scanning tunneling microscopy/spectroscopy (STM/STS) measurements. When the charge order pr…
Charge density wave in single-layer Pb/Ge(111) driven by Pb-substrate exchange interaction
Cesare Tresca, Matteo Calandra
Single layer Pb on top of (111) surfaces of group IV semiconductors hosts charge density wave and superconductivity depending on the coverage and on the substrate. These systems ar…
Electronic structure and magnetic properties of few-layer CrGeTe: the key role of nonlocal electron-electron interaction effects
Guido Menichetti, Matteo Calandra, Marco Polini
Atomically-thin magnetic crystals have been recently isolated experimentally, greatly expanding the family of two-dimensional materials. In this Article we present an extensive com…
Charge density wave and spin insulating state in single layer 1T-NbS
Cesare Tresca, Matteo Calandra
In bulk samples and few layer flakes, the transition metal dichalcogenides NbS and NbSe assume the H polytype structure with trigonal prismatic coordination of the Nb atom.…
Chiral spin texture in the charge-density-wave phase of the correlated metallic Pb/Si(111) monolayer
C. Tresca, C. Brun, T. Bilgeri +10
We investigate the 1/3 monolayer -Pb/Si(111) surface by scanning tunneling spectroscopy (STS) and fully relativistic first-principles calculations. We study both the high-temper…
Hole-depletion of ladders in SrCuO induced by correlation effects
V. Ilakovac, C. Gougoussis, M. Calandra +7
The hole distribution in SrCuO is studied by low temperature polarization dependent O K Near-Edge X-ray Absorption Fine Structure measurements and state of the…
Evidence for non-conventional pairing in NaCoOyHO
Jean-Pascal Rueff, M. Calandra, M. D'astuto +10
We report on first investigation of the lattice dynamics in the novel superconducting material NaCoO1.3HO and the non-hydrated parent compound Na$\_{0.7}…
Polarized resonant inelastic x-ray scattering as an ultra-fine probe of excited states in La2CuO4
A. Shukla, M. Calandra, M. Taguchi +3
X-ray absorption is the standard method to probe the unoccupied density of states at a given edge. Here we show that polarized Resonant Inelastic X-Ray Scattering in La2CuO4 at the…
Saturation of electrical resistivity
O. Gunnarsson, M. Calandra, J. E. Han
Resistivity saturation is observed in many metallic systems with a large resistivity, i.e., when the resistivity has reached a critical value, its further increase with temperature…
Violation of Ioffe-Regel condition but saturation of resistivity of the high Tc cuprates
M. Calandra, O. Gunnarsson
We demonstrate that the resistivity data of a number of high Tc cuprates, in particular La(2-x)SrxCuO4, are consistent with resistivity saturation, although the Ioffe-Regel conditi…
Electrical resistivity at large temperatures: Saturation and lack thereof
M. Calandra, O. Gunnarsson
Many transition metal compounds show saturation of the resistivity at high temperatures, T, while the alkali-doped fullerenes and the high-Tc cuprates are usually considered to sho…
Metal-insulator transition and charge ordering in the extended Hubbard model at one-quarter filling
M. Calandra, J. Merino, Ross H. McKenzie
We study with exact diagonalization the zero temperature properties of the quarter-filled extended Hubbard model on a square lattice. We find that increasing the ratio of the inter…
From antiferromagnetism to d-wave superconductivity in the 2D t-J model
Matteo Calandra, Sandro Sorella
We have found that the two dimensional t-J model, for the physical parameter range J/t = 0.4 reproduces the main experimental qualitative features of High-Tc copper oxide supercond…
Charge fluctuations close to phase separation in the two dimensional t-J model
M. Calandra, F. Becca, S. Sorella
We have studied the t-J model using the Green Function Monte Carlo technique. We have obtained accurate energies well converged in the thermodynamic limit, by performing simulation…