Published June 1974
| Version v1
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Phonon scattering by isotopic impurities
Description
The effects upon vibrations of a perfect crystal lattice due to the replacement of some of its atoms by isotopes of these atoms are studied. The approach consists in considering the isotopic impurities as scattering centres for the quanta of the elastic waves the objective is to obtain the scattering amplitudes. These amplitudes are obtained through a canonical transformation method which was introduced by Chevalier and Rideau in the study of the Wentzel's model in quantum field theory
Availability note (English)
MF available from INIS under the Report Number.Files
7243037.pdf
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Additional details
Additional titles
- Original title (Portuguese)
- Difusao de fonons por impurezas isotopicas
Publishing Information
- Imprint Pagination
- 59 p.
- Report number
- INIS-mf--1940
INIS
- Country of Publication
- Brazil
- Country of Input or Organization
- Brazil
- INIS RN
- 7243037
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Resource subtype / Literary indicator
- Thesis
- Descriptors DEI
- CRYSTAL LATTICES; ENERGY-LEVEL TRANSITIONS; ISOTOPE EFFECTS; LATTICE VIBRATIONS; PHONONS; SCATTERING; SCATTERING AMPLITUDES; VIBRATIONAL STATES; WAVE PROPAGATION
- Descriptors DEC
- AMPLITUDES; CRYSTAL STRUCTURE; ENERGY LEVELS; EXCITED STATES; QUASI PARTICLES