Strain in microcrystals and in superlattices

Luigi Giacomo Conti

doi:10.1117/12.55596

1 April 1990 Strain in microcrystals and in superlattices

Luigi Giacomo Conti

Author Affiliations +

Optical Engineering, Vol. 29, Issue 4, (April 1990). https://doi.org/10.1117/12.55596

Abstract

A new general theory of the dependence of strain on crystal size L for defect-free cubic materials bounded by {100} faces is presented. While current theories predict a (?/L) dependence, this work suggests a (F/L)½ dependence by considering both surface tension (?) and surface free energy (6FL2) effects. Since small crystals, especially if very fresh or not annealed, may contain a large fraction of point defects, the sizedependent strain must be separated from the defect-induced strain. The theory is verified by reinterpreting three experimental studies reported in the literature and based on the techniques of electron microscopy, x-ray diffraction, and nuclear magnetic resonance. The theory offers a straightforward explanation for the extra longitudinal strain in superlattices, as detected by Raman spectroscopy.

Citation Download Citation

Luigi Giacomo Conti "Strain in microcrystals and in superlattices," Optical Engineering 29(4), (1 April 1990). https://doi.org/10.1117/12.55596

Published: 1 April 1990

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available