Published February 1986 | Version v1
Journal article Metadata-only

Inelastic neutron scattering study on acoustical activity of Bi12GeO20 and Bi12SiO20

Creators

  • 1. Academia Sinica, Beijing (China). Inst. of Physics
  • 2. China Univ. of Science and Technology, Hefei, AH. Dept. of Physics
  • 3. Academia Sinica, Beijing (China). Inst. of Atomic Energy
  • 4. Academia Sinica, Beijing (China). Inst. of Acoustics

Description

Acoustical avtivity of isomorphous crystals Bi12GeO20 and Bi12SiO20 has been studied by measuring the splitting of degeneracy of transverse acoustical waves propagating along high symmetric direction with inelstic neutron scattering. One of the interesting results is that the left and right circularly polarized modes of acoustical phonons propagating along <111> direction are subjected to different attenuation. This conclusion is verified by both kinds of crystals. The experimental result is observed for the first time in the study of acoustical activity. The life-time of the phonon with larger attenuation is found to be about 2 x 10-11 s. experimentally

Additional details

Publishing Information

Journal Title
Acta Phys. Sin.
Journal Volume
35
Journal Issue
2
Series
Acta Phys. Sin.
Journal Page Range
196-202
ISSN
0372-736X
CODEN
WLHPA

INIS

Country of Publication
China
Country of Input or Organization
China
INIS RN
18012018
Subject category
S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
Resource subtype / Literary indicator
Numerical Data
Descriptors DEI
ATTENUATION; CRYSTALS; EXPERIMENTAL DATA; INELASTIC SCATTERING; LIFETIME; NEUTRONS; PHONONS; SOUND WAVES
Descriptors DEC
BARYONS; DATA; ELEMENTARY PARTICLES; FERMIONS; HADRONS; INFORMATION; NUCLEONS; NUMERICAL DATA; QUASI PARTICLES; SCATTERING

Optional Information

Notes
This paper was also presented at 13th International Crystallography Conference.