Accession Number : AD0684551

Title :   LOCAL MODES AND RESONANCE SCATTERING IN CRYSTALS.

Descriptive Note : Final scientific rept. 1 Oct 66-30 Sep 68,

Corporate Author : MILAN UNIV (ITALY) ISTITUTO DI FISICA

Personal Author(s) : Nardelli,G. F.

Report Date : 31 OCT 1968

Pagination or Media Count : 11

Abstract : The report reviews results that concern both lattice and electronic response functions of imperfect alkali halides. Particular attention was paid to sound and ultrasound propagation, optical activity in far infrared and infrared regions, bulk and local elastic constants, local anharmonicities, local lattice instabilities (a preliminary account), optical activity in the ultraviolet and visible regions, and Raman activity in the ultraviolet region. The results concern also, in indirect way, the thermal conductivity of imperfect alkali halides. (Author)

Descriptors :   (*ALKALI METAL COMPOUNDS, *CRYSTAL STRUCTURE), ULTRASONIC RADIATION, INFRARED RADIATION, ULTRAVIOLET RADIATION, THERMAL CONDUCTIVITY, COLOR CENTERS, PHONONS, ELASTIC PROPERTIES, HALIDES, ITALY

Subject Categories : Crystallography

Distribution Statement : APPROVED FOR PUBLIC RELEASE