Do phonons exist in non-crystalline matter?

I. Pócsik

Physica A: Statistical Mechanics and its Applications, 1993, vol. 201, issue 1, 34-37

Abstract: The low-frequency properties of glasses are usually explained by phonons. It will be shown here that the motions at these frequencies are vibrational and are not phonons, but localized vibrations of the multifractal cluster structures of the glasses that should be called clustrons. Because of the distinct elements of these structures (clusters) far fewer atoms hold a vibrational degree of freedom than in crystals, thereby explaining the greater density of states in glasses than in the crystal. The extremely strong localization of these clustrons (because the neighbour clusters vibrate at different frequencies) explains the decreased thermal conductivity in glasses apart from the specific heat increase (which would cause a parallel increase in the thermal conductivity in crystals).

Date: 1993
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/037843719390397M
Full text for ScienceDirect subscribers only. Journal offers the option of making the article available online on Science direct for a fee of $3,000

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:201:y:1993:i:1:p:34-37

DOI: 10.1016/0378-4371(93)90397-M

Access Statistics for this article

Physica A: Statistical Mechanics and its Applications is currently edited by K. A. Dawson, J. O. Indekeu, H.E. Stanley and C. Tsallis

More articles in Physica A: Statistical Mechanics and its Applications from Elsevier
Bibliographic data for series maintained by Catherine Liu ().