Gradient correction scheme for bulk and defect positron states in materials: New developments

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F14%3A10288305" target="_blank" >RIV/00216208:11320/14:10288305 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1088/1742-6596/505/1/012040" target="_blank" >http://dx.doi.org/10.1088/1742-6596/505/1/012040</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1742-6596/505/1/012040" target="_blank" >10.1088/1742-6596/505/1/012040</a>

Result language
angličtina
Original language name
Gradient correction scheme for bulk and defect positron states in materials: New developments
Original language description
As local density approximation positron calculations systematically underestimate positron lifetimes when they are compared with their experimental counterparts, the generalized gradient approximation (GGA) for positrons was introduced in the 1990s, in analogy with the GGA for electrons. New developments in the GGA for positrons are summarized and presented here and it is also discussed how they affect and possibly improve calculated positron lifetimes. In particular, these new GGA approaches are basedon the recent perturbed hypernetted-chain and quantum Monte Carlo results.
Czech name
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Czech description
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Project
<a href="/en/project/GBP108%2F12%2FG043" target="_blank" >GBP108/12/G043: Interface controlled properties of micro/nanocrystalline materials for advanced structural applications, biodegradable implants and hydrogen storage</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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