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  • Positron annihilation at selected tilt and twist grain boundaries in iron and nickel is examined theoretically. First the atomic structure of studied perfect and imperfect grain boundaries is obtained using molecular dynamics simulations. Characteristics of positrons trapped at such GBs are then calculated employing the atomic superposition method and are related to free volumes found at GBs. It is observed that in some cases vacancies introduced into ideal grain boundaries do not result in an increase of the positron lifetime.
  • Positron annihilation at selected tilt and twist grain boundaries in iron and nickel is examined theoretically. First the atomic structure of studied perfect and imperfect grain boundaries is obtained using molecular dynamics simulations. Characteristics of positrons trapped at such GBs are then calculated employing the atomic superposition method and are related to free volumes found at GBs. It is observed that in some cases vacancies introduced into ideal grain boundaries do not result in an increase of the positron lifetime. (en)
Title
  • Positron annihilation at grain boundaries in metals
  • Positron annihilation at grain boundaries in metals (en)
skos:prefLabel
  • Positron annihilation at grain boundaries in metals
  • Positron annihilation at grain boundaries in metals (en)
skos:notation
  • RIV/00216224:14310/07:00019603!RIV10-MSM-14310___
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(GA202/06/1509), P(IAA1041302), P(OC 147), Z(AV0Z20410507), Z(MSM0021620834), Z(MSM0021622410)
http://linked.open...iv/cisloPeriodika
  • 10
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 442543
http://linked.open...ai/riv/idVysledku
  • RIV/00216224:14310/07:00019603
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • positron annihilation; grain boundaries; electronic structure (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • DE - Spolková republika Německo
http://linked.open...ontrolniKodProRIV
  • [722B08C8C253]
http://linked.open...i/riv/nazevZdroje
  • physica status solidi (c)
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 4
http://linked.open...iv/tvurceVysledku
  • Kuriplach, Jan
  • Melikhova, Oksana
  • Šob, Mojmír
  • Hou, M.
  • Van Petegem, S.
  • Zhurkin, E.
http://linked.open...n/vavai/riv/zamer
issn
  • 1862-6351
number of pages
http://localhost/t...ganizacniJednotka
  • 14310
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