Strain fields around high-energy ion tracks in α-quartz

Description:

This article discusses strain fields around high-energy ion tracks in α-quartz.

Creator(s):
Creation Date: 2006  
Partner(s):
UNT College of Arts and Sciences
Collection(s):
UNT Scholarly Works
Usage:
Total Uses: 52
Past 30 days: 10
Yesterday: 1
Creator (Author):
Follstaedt, David M.

Sandia National Laboratories

Creator (Author):
Norman, A. K.

Sandia National Laboratories

Creator (Author):
Doyle, B. L.

Sandia National Laboratories

Creator (Author):
Publisher Info:
Place of Publication: [College Park, Maryland]
Date(s):
  • Creation: 2006
Description:

This article discusses strain fields around high-energy ion tracks in α-quartz.

Degree:
Department: Physics
Note:

Copyright 2006 American Institute of Physics. Journal of Applied Physics 100(6), 2006. http://dx.doi.org/10.1063/1.2345029

Note:

Abstract: Transmission electron microscopy has been used to image the tracks of high-energy math (374 MeV) and math (241 MeV) ions incident in a nonchanneling direction through a prethinned specimen of hexagonal α-quartz (SiO2). These ions have high electronic stopping powers in quartz, 24 and 19 keV/nm, respectively, which are sufficient to produce a disordered latent track. When the tracks are imaged with diffraction contrast using several different reciprocal lattice vectors, they exhibit a radial strain extending outward from their disordered centerline approximately 16 nm into the crystalline surroundings. The images are consistent with a radial strain field with cylindrical symmetry around the amorphous track, like that found in models developed to account for the lateral expansion of amorphous SiO2 films produced by irradiation with high-energy ions. These findings provide an experimental basis for increased confidence in such modeling.

Physical Description:

6 p.

Language(s):
Subject(s):
Keyword(s): quartz | ion beam effects | transmission electron | microscopy | energy loss of particles
Source: Journal of Applied Physics, 2006, College Park: American Institute of Physics
Partner:
UNT College of Arts and Sciences
Collection:
UNT Scholarly Works
Identifier:
  • ARK: ark:/67531/metadc139473
Resource Type: Article
Format: Text
Rights:
Access: Public
Citation:
Publication Title: Journal of Applied Physics
Volume: 100
Issue: 6
Pages: 6
Peer Reviewed: Yes