Many-Body Effects Observed in the Positron Annihilation Experiment
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چکیده
منابع مشابه
Many-Body Effects Observed in the Positron Annihilation Experiment
This paper is devoted to study many-body effects in the positron annihilation experiment, both electron−positron (e–p) and electron–electron (e–e) correlations. Various theories of the e–p interaction in real solids were used to verify them by comparing theoretical and experimental e–p momentum densities in Cu and Y. We show that the lattice potential has an essential influence on the e–p corre...
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A many-body theory approach to the calculation of gamma spectra of positron annihilation on many-electron atoms is developed. We evaluate the first-order correlation correction to the annihilation vertex and perform numerical calculations for the noble gas atoms. Extrapolation with respect to the maximal orbital momentum of the intermediate electron and positron states is used to achieve conver...
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Rights: © 2013 American Physical Society (APS). This is the accepted version of the following article: Tuomisto, Filip & Makkonen, Ilja. 2013. Defect identification in semiconductors with positron annihilation: Experiment and theory. Reviews of Modern Physics. Volume 85, Issue 4. 1583-1631. ISSN 0034-6861 (printed). DOI: 10.1103/revmodphys.85.1583, which has been published in final form at http...
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Heat transfer by electromagnetic radiation is one of the common methods of energy transfer between objects. Using the fluctuation-dissipation theorem, we have studied the effect of particle arrangement in the transmission of radiative heat in many-body systems. In order to show the effect of the structure morphology on the collective properties, the radiative heat transfer is studied and the re...
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Positron annihilation spectroscopy is nowadays well recognised as a powerful tool of microstructure investigations of condensed matter. An overview of the method aimed for users from other fields is given and supplemented with several examples of applications.
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ژورنال
عنوان ژورنال: Acta Physica Polonica A
سال: 2005
ISSN: 0587-4246,1898-794X
DOI: 10.12693/aphyspola.107.562