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Abstract

The ZnO – positron system is studied and its positron – electron correlation energy is estimated in its ground state. The positron binds with the outer shell electrons of Zinc and Oxigen to form the pseudo ZnO – positron molecule before it anihilates with one of these electrons. In this work, the single wave function for positron is modified according to the principle of linear superposition, and by using Variational Quantum Monte – Carlo method (VQMC) the correlation energy of this system is estimated with the value Ec e-p = - 9.3 ± 1.1 eV. It turns out that the value is closer to results estimated by other methods than the value that we had done before.



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Issue: Vol 14 No 4 (2011)
Page No.: 77-85
Published: Dec 30, 2011
Section: Natural Sciences - Research article
DOI: https://doi.org/10.32508/stdj.v14i4.2029

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Creative Commons License

Copyright: The Authors. This is an open access article distributed under the terms of the Creative Commons Attribution License CC-BY 4.0., which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

 How to Cite
Chau, T., Trinh, L., Nguyen, T., Le, C., & Nguyen, L. (2011). CALCULATING THE POSITRON – ELECTRON CORRELATION ENERGY IN ZnO WITH THE MODIFIED SINGLE WAVE FUNCTION FOR POSITRON. Science and Technology Development Journal, 14(4), 77-85. https://doi.org/https://doi.org/10.32508/stdj.v14i4.2029

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