449 citations · 3.2k across the 60 of their papers we have counts for
61 papers
Theory of phonon-magnon hybridization and angular momentum in CrI and CrBr
Maxime Mignolet, Miquel Royo, Massimiliano Stengel +1
In magnetic materials angular momentum can be mediated by different carriers, including electrons, magnons, and phonons. The magnons can interact with circularly polarized phonons…
Rototranslational sum rules for nuclear dynamics via traveling pseudopotentials
Massimiliano Stengel, Miquel Royo, Emilio Artacho
We establish a set of exact sum rules that relate the interatomic force constants to the frequency-dependent electromagnetic susceptibility of a solid or molecule, thereby generali…
Dynamical response of noncollinear spin systems at constrained magnetic moments
Miquel Royo, Massimiliano Stengel
Noncollinear magnets are notoriously difficult to describe within first-principles approaches based on density-functional theory (DFT) because of the presence of low-lying spin exc…
Ensemble Density-Functional Perturbation Theory: Spatial Dispersion in Metals
Asier Zabalo, Massimiliano Stengel
We present a first-principles methodology, within the context of linear-response theory, that greatly facilitates the perturbative study of physical properties of metallic crystals…
Adiabatic dynamics of coupled spins and phonons in magnetic insulators
Shang Ren, John Bonini, Massimiliano Stengel +2
In conventional \textit{ab initio} methodologies, phonons are calculated by solving equations of motion involving static interatomic force constants and atomic masses. The Born-Opp…
Macroscopic polarization from nonlinear gradient couplings
Massimiliano Stengel
We show that a lattice mode of arbitrary symmetry induces a well-defined macroscopic polarization at first order in the momentum and second order in the amplitude. We identify a sy…