8-12 July 2013
Africa/Johannesburg timezone
<a href="http://events.saip.org.za/internalPage.py?pageId=13&confId=32"><font color=#ff0000>SAIP2013 PROCEEDINGS AVAILABLE</font></a>

Annihilation of Positrons with High Momentum states in Lithium Flouride using Local Density Approximation and Generalized Gradient Approximation

9 Jul 2013, 17:40
Poster Presentation Track A - Division for Condensed Matter Physics and Materials Poster1


Mr Thulani Jili (University of Zululand)

Abstract content <br> &nbsp; (Max 300 words)

High momentum components of electron-positron annihilation radiation in ionic lithium flouride are obtained via annihilation of positrons with core electrons. The ratios of annihilation probabilities for various electronic levels as a function of momentum are calculated within the local density approximation (LDA) and generalized gradient approximation (GGA). Annihilation rates associated with defects and in the bulk are also calculated

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Primary author

Mr Thulani Jili (University of Zululand)


Dr Daniel Wamwangi (University of the Witwatersrand) Prof. Elias Sideras-Haddad (University of the Witwatersrand) Mrs Tsepiso Buthelezi (University of Zululand)

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