Atomic Scale Dynamics at Surfaces

Experimental advances in helium atom scattering spectroscopy over the last forty years have allowed the measurement of surface phonon dispersion curves of more than 200 different crystal surfaces and overlayers of insulators, semiconductors and metals.

Progresele experimentale in spectroscopia de imprastiere a atomilor de heliu din ultimii patruzeci de ani au permis masurarea curbelor de dispersie a fononului de suprafata a mai mult de 200 de suprafete de cristal diferite si a straturilor de izolatori, semiconductori si metale.