350 citations · 374 across the 2 of their papers we have counts for
3 papers
Dipole-active optical phonons in YTiO_3: ellipsometry study and lattice-dynamics calculations
N. N. Kovaleva, A. V. Boris, L. Capogna +6
The anisotropic complex dielectric response was accurately extracted from spectroscopic ellipsometry measurements at phonon frequencies for the three principal crystallographic dir…
Negative oxygen vacancies in HfO as charge traps in high-k stacks
J. L. Gavartin, D. Munoz Ramo, A. L. Shluger +2
We calculated the optical excitation and thermal ionization energies of oxygen vacancies in m-HfO using atomic basis sets, a non-local density functional and periodic supercell…
The role of nitrogen related defects in high-k dielectric oxides: Density functional studies
J. L. Gavartin, A. S. Foster, G. I. Bersuker +1
Using ab initio density functional total energy and molecular dynamics simulations, we study the effects of various forms of nitrogen post deposition anneal (PDA) on the electric p…