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2014 | 125 | 3 | 722-725
Article title

Comparison of Grain Boundary Structure in Metals and Semiconductors as Probed by Positrons

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Abstracts
EN
Vacancy behavior and positron trapping at selected grain boundaries in iron, nickel, and zirconia are investigated theoretically. It is found that the grain boundary vacancy loses its free volume in metals at moderate temperatures whereas it is kept up to very high temperatures in zirconia. The consequences of these findings for positron annihilation studies of nanocrystalline materials are discussed.
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  • Department of Low Temperature Physics, Faculty of Mathematics and Physics, Charles University in Prague V Holešovičkách 2, CZ-180 00 Prague, Czech Republic
References
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Document Type
Publication order reference
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YADDA identifier
bwmeta1.element.bwnjournal-article-appv125n311kz
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