U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

PUBLICATIONS

Poisson Ratio and Covalency - Ionicity

Published

Author(s)

H M. Ledbetter, Sung Kim

Abstract

For twenty-one 8-N (octet) compounds, we consider the dependence of the Poisson ratio upsilion} on fractional covalent-ionic character estimated from atomic electronegativites. Compounds with ionicity approaching 1.0 show Poisson ratios near the upper bound: υ = 0.5. Increasing covalency moves υ toward zero, the effective lower bound. Especially, we focus on tetrahedral semiconductors where ionicity rannges from 0 to 0.6. We find that the Poisson ratio increases with increasing ionicity.
Citation
Poisson Ratio and Covalency - Ionicity
Publisher Info
Handbook of Elastic Properties of Solids, Fluids, and Gases ,
Pub Type
Books

Keywords

constants, covalency, elastic, ionicity, Poisson ratio, semiconductors

Citation

Ledbetter, H. and Kim, S. (2008), Poisson Ratio and Covalency - Ionicity, Handbook of Elastic Properties of Solids, Fluids, and Gases , (Accessed July 27, 2024)

Issues

If you have any questions about this publication or are having problems accessing it, please contact reflib@nist.gov.

Created October 16, 2008