We measured the Raman and the infrared phonon spectrum of SmFeAsO polycrystalline samples. We also performed density functional theory calculations within the pseudopotential approximation to obtain the structural and dynamical lattice properties of both the SmFeAsO and the prototype LaFeAsO compounds. The measured Raman and infrared phonon frequencies are well predicted by the optical phonon frequencies computed at the G point, showing the capability of the employed ab initio methods to describe the dynamical properties of these materials. The present study and the comparison among the phonon frequencies of different oxypnictides can provide a theoretical/experimental background for stimulating further investigations on the role of phonons...
A brief review is given of phonons in amorphous materials as seen in Raman scattering, infrared abso...
A combined experimental and theoretical approach, consisting of lattice phonon Raman spectroscopy an...
A comparative study of thermal properties of SmFeAsO, SmFeAsO0.93F0.07, and SmFeAsO0.85F0.15 samples...
We measured the Raman and the infrared phonon spectrum of SmFeAsO polycrystalline samples. We also p...
We have performed systematic studies of the lattice dynamics in LFeAsO (L = La, Ce, Pr, Nd, Sm) in t...
We present some applications of a first-principles approach to the study of the vibrational properti...
The phonon vibrational frequencies, electronic and elastic properties of SrFCl, one of the members ...
A comparative study of thermal properties of SmFeAsO, SmFeAs (O 0.93 F0.07), and SmFeAs(O0.85 F0.15)...
Using the local-density approximation, calculating the Hellmann-Feynman forces and applying the dire...
Methods for theoretically evaluating lattice dynamics, anharmonic effects and related optical proper...
In this work, we discuss two approaches to calculate phonon spectra of crystals within the all-elect...
The structural properties of SnO2 polymorphs in the sequential order of observed phases in experimen...
Thermal properties of SmFeAs(O1-xFx) as probe of the interplay between electrons and phonons
Abstract. We report our detailed calculation of the infrared spectra of GaAs and GaP from first prin...
We report measurements of the phonon density of states as measured with inelastic x-ray scattering i...
A brief review is given of phonons in amorphous materials as seen in Raman scattering, infrared abso...
A combined experimental and theoretical approach, consisting of lattice phonon Raman spectroscopy an...
A comparative study of thermal properties of SmFeAsO, SmFeAsO0.93F0.07, and SmFeAsO0.85F0.15 samples...
We measured the Raman and the infrared phonon spectrum of SmFeAsO polycrystalline samples. We also p...
We have performed systematic studies of the lattice dynamics in LFeAsO (L = La, Ce, Pr, Nd, Sm) in t...
We present some applications of a first-principles approach to the study of the vibrational properti...
The phonon vibrational frequencies, electronic and elastic properties of SrFCl, one of the members ...
A comparative study of thermal properties of SmFeAsO, SmFeAs (O 0.93 F0.07), and SmFeAs(O0.85 F0.15)...
Using the local-density approximation, calculating the Hellmann-Feynman forces and applying the dire...
Methods for theoretically evaluating lattice dynamics, anharmonic effects and related optical proper...
In this work, we discuss two approaches to calculate phonon spectra of crystals within the all-elect...
The structural properties of SnO2 polymorphs in the sequential order of observed phases in experimen...
Thermal properties of SmFeAs(O1-xFx) as probe of the interplay between electrons and phonons
Abstract. We report our detailed calculation of the infrared spectra of GaAs and GaP from first prin...
We report measurements of the phonon density of states as measured with inelastic x-ray scattering i...
A brief review is given of phonons in amorphous materials as seen in Raman scattering, infrared abso...
A combined experimental and theoretical approach, consisting of lattice phonon Raman spectroscopy an...
A comparative study of thermal properties of SmFeAsO, SmFeAsO0.93F0.07, and SmFeAsO0.85F0.15 samples...