Published September 1989 | Version v1
Journal article Metadata-only

Acoustic wave absorption in YAlO3 and Y0.9Lu0.1AlO3 crystals

Creators

  • 1. AN SSSR, Moscow (USSR). Inst. Radiotekhniki i Ehlektroniki

Description

It is shown, that abrupt dependence of absorption coefficient (AC) of longitudinal acoustic waves (AW) on temperature under low temperatures in YAlO3 results from velocity dispersion of acoustic phonons. Absorption peculiarities for longitudinal and shear AW in Y0.9Lu0.1AlO3 solid solution are explained. Occurence of phonon intensive quasi-elastic scattering in these crystals results in essential variation of value and character of AW absorption as compared to pure crystal (matrix). Velocities of longitudinal and shear AW are measured in these crystals

Additional details

Additional titles

Original title (Russian)
Поглощение акустических волн в кристаллах YAlO

Publishing Information

Journal Title
Fizika Tverdogo Tela
Journal Volume
31
Journal Issue
9
Series
Fiz. Tverd. Tela.
Journal Page Range
13-18
ISSN
0367-3294
CODEN
FTVTA

INIS

Country of Publication
Russian Federation
Country of Input or Organization
USSR
INIS RN
21073213
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Descriptors DEI
ABSORPTION; ALUMINATES; FREQUENCY DEPENDENCE; GHZ RANGE 01-100; LOW TEMPERATURE; LUTETIUM COMPOUNDS; MHZ RANGE 100-1000; MONOCRYSTALS; ORIENTATION; PHONONS; SOLID SOLUTIONS; TEMPERATURE DEPENDENCE; ULTRALOW TEMPERATURE; ULTRASONIC WAVES; VERY LOW TEMPERATURE; WAVE PROPAGATION; YTTRIUM COMPOUNDS
Descriptors DEC
ALUMINIUM COMPOUNDS; CRYSTALS; DISPERSIONS; FREQUENCY RANGE; GHZ RANGE; HOMOGENEOUS MIXTURES; MHZ RANGE; MIXTURES; OXYGEN COMPOUNDS; QUASI PARTICLES; RARE EARTH COMPOUNDS; SOLUTIONS; SOUND WAVES; TRANSITION ELEMENT COMPOUNDS