Since approximately 1950 an increasing portion of experimental solid state physics research
has been concerned with studying defects in crystals. This trend might appear to be a rather …

The O—H stretching band and its immediate sidebands have been studied for OH−
impurities in NaCl, KCl, RbCl, KBr, KI, and NaBr from 1.4 to 300 K. Sideband splittings range …

The crystal-point impurity problem is examined for the case of changes in nearest-neighbor
forces around the defect site. Using the recently developed group-theoretical techniques …

The thermal conductivity of a harmonic Bravais crystal containing randomly distributed
substitutional defects due to impurity-phonon scattering is theoretically investigated using …

Titanium nitride (TiN) has recently gained considerable interest because of its remarkable
plasmonic properties and for its strong electron–phonon (e–ph) coupling, leading to …

The phonon optical properties of the mixed fluorite system Ca 1− x Sr x F 2 are treated
theoretically using the" average-Green's-function" formalism. The calculations are based on …

Thermal-conductivity measurements have been made as a function of temperature on
sodium chloride crystals containing the nine monovalent substitutional impurities: F−, Br−, I …

The electron-lattice interaction of NaCl: Tl+, KCl: Tl+, KBr: Tl+, and KI: Tl+ is discussed using
the moments of the absorption bands. The discussion is based on a theory of Toyozawa and …

The frequency shift of a lattice resonant mode associated with the isotopic substitution of an
impurity ion has been measured for NaCl: Cu+, KI: Ag+, and KBr: Li+. For all three systems …

In the framework of the T‐matrix formalism the generalized phonon dispersion relations for a
crystal containing a finite concentration of randomly distributed defects are introduced. The …