66 citations · 155 across the 6 of their papers we have counts for
6 papers
Advantages and developments of Raman spectroscopy for electroceramics
Marco Deluca, Hailong Hu, Maxim N. Popov +2
Despite being applied with success in many fields of materials science, Raman spectroscopy is not yet determinant in the study of electroceramics. Recent experimental and theoretic…
Origin of relaxor behavior in barium-titanate based lead-free perovskites
Vignaswaran Veerapandiyan, Maxim N. Popov, Florian Mayer +12
It is well known that disordered relaxor ferroelectrics exhibit local polar correlations. The origin of localized fields that disrupt long range polar order for different substitut…
Raman spectra of fine-grained materials from first principles
Maxim N. Popov, Jürgen Spitaler, Vignaswaran K. Veerapandiyan +3
Raman spectroscopy is an advantageous method for studying the local structure of materials, but the interpretation of measured spectra is complicated by the presence of oblique pho…
Density Functional Theory and Generalized Tight-Binding combined method for Hubbard fermion-phonon coupling study in strongly correlated LSCO-system
J. Spitaler, E. I. Shneyder, E. E. Kokorina +4
We present ab initio results for the electron-phonon interaction of the Γ-point phonons in the tetragonal high-temperature phase of La2CuO4. Eigenfrequencies and eigenvectors for t…
Optical properties and Raman scattering of vanadium ladder compounds
J. Spitaler, E. Ya. Sherman, C. Ambrosch-Draxl +1
We investigate electronic and optical properties of the V-based ladder compounds NaV2O5, the iso-structural CaV2O5, as well as MgV2O5, which differs from NaV2O5 and CaV2O5 in the c…
Charge ordering in quarter-filled ladder systems coupled to the lattice
M. Aichhorn, M. Hohenadler, E. Ya. Sherman +3
We investigate charge ordering in the presence of electron-phonon coupling for quarter-filled ladder systems by using Exact Diagonalization. As an example we consider NaV2O5 using…