Published February 2007 | Version v1
Journal article Metadata-only

Elastic theory of quasicrystals and evaluation of photon-phason coupling constant

Creators

  • 1. Tokyo Univ., Inst. of Industrial Science, Tokyo (Japan)

Description

Originating in the quasiperiodic order, quasicrystals have a special type of elastic degrees of freedom, termed as phason degrees of freedom. Quasicrystals are accompanied by the phason elastic field in addition to the phonon (conventional) elastic field. The elastic theory of quasicrystals is constructed in terms of the two types of elastic fields. Then, the elasticity of quasicrystals comprises the three parts: pure phonon elasticity, pure phason elasticity and phonon-phason coupling. In this article, we review the elastic theory of quasicrystals and present our recent study on experimental evaluation of photon-phason coupling constants in icosahedral quasicrystals. (author)

Additional details

Publishing Information

Journal Title
Nippon Kessho Gakkai-Shi
Journal Volume
49
Journal Issue
1
Journal Page Range
p. 29-33
ISSN
0369-4585

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
39068119
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
ALUMINIUM ALLOYS; COPPER ALLOYS; COUPLING CONSTANTS; CRYSTAL STRUCTURE; CRYSTALLIZATION; ELASTICITY; FREE ENERGY; IRON ALLOYS; PENTAGONAL LATTICES; PERIODICITY; PHONONS; QUATERNARY ALLOY SYSTEMS; STRAINS; TERNARY ALLOY SYSTEMS; X-RAY DIFFRACTION
Descriptors DEC
ALLOY SYSTEMS; ALLOYS; COHERENT SCATTERING; CRYSTAL LATTICES; CRYSTAL STRUCTURE; DIFFRACTION; ENERGY; MECHANICAL PROPERTIES; PHASE TRANSFORMATIONS; PHYSICAL PROPERTIES; QUASI PARTICLES; SCATTERING; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT ALLOYS; VARIATIONS

Optional Information

Notes
22 refs., 6 figs.