74 citations · 137 across the 3 of their papers we have counts for
5 papers · 1 filter
Ultrafast control of material optical properties via the infrared resonant Raman effect
Guru Khalsa, Nicole A. Benedek, Jeffrey Moses
The Raman effect -- inelastic scattering of light by lattice vibrations (phonons) -- produces an optical response closely tied to a material's crystal structure. Here we show that…
Strain game revisited for complex oxide thin-films: Substrate-film thermal expansion mismatch in PbTiO
Ethan T. Ritz, Nicole A. Benedek
The sensitivity of materials properties, particularly those of perovskite oxides, to epitaxial strain has been exploited to great advantage to create materials with new or enhanced…
Thermal Expansion in Insulating Solids From First Principles
Ethan T. Ritz, Sabrina J. Li, Nicole A. Benedek
In this Tutorial, we describe the use of the quasiharmonic approximation and first-principles density functional theory (DFT) to calculate and analyze the thermal expansion of insu…
Interplay between phonons and anisotropic elasticity drives negative thermal expansion in PbTiO
Ethan T. Ritz, Nicole A. Benedek
We use first-principles theory to show that the ingredients assumed to be essential to the occurrence of negative thermal expansion (NTE) -- rigid unit phonon modes with negative G…
The Magnetoelectric Effect in Transition Metal Oxides: Insights and the Rational Design of New Materials from First Principles
Turan Birol, Nicole A. Benedek, Hena Das +6
The search for materials displaying a large magnetoelectric effect has occupied researchers for many decades. The rewards could include not only advanced electronics technologies,…