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>

Theoretical Study of Positron States in Barium Flouride using Independent Particle Model 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)

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

High momentum components of positron-electron annihilation radiation are in general related to the annihilations of core electrons with positrons. A theoretical approach is conducted to study the contributions of low to high momentum components of electron-positron momentum density in ionic barium flouride. Annihilation rates are calculated within the Independent Particle Model (IPM) and Generalized Gradient Approximation (GGA). Defect and defect-free zones annihilation rates are also considered.

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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)

Presentation Materials

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