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    Ma Ying, Sun Ling-Ling, Zhou Yi-Chun
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    • Radiation displacement effect is studied using shell model molecular dynamics simulations. Using oxygen atom as a primary knock-on atom, the creation and the evolution of various defects in the system corresponding to the primary knock-on atom(PKA) energy of 1 keV are studied. The results show that a largest number of defects are created when the incidence is along the [001]direction. Among all the defect species, oxygen atom defects are dominant, and its concentration reaches 80%. The creation of defects does not change the spontaneous polarization of the system significantly, and the polarization reversal also changes little. Defect migration is observed under an applied electric field.
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      Metrics
      • Abstract views:8574
      • PDF Downloads:1214
      • Cited By:0
      Publishing process
      • Received Date:19 March 2010
      • Accepted Date:16 July 2010
      • Published Online:05 February 2011

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