Point defects in molybdenum

Abstract
The displacement fields around an isolated vacancy, an interstitial and a number of divacancy configurations in molybdenum have been calculated using a method of direct minimization of the potential energy of the real-space atomic configuration. The atomic interaction is described by a short-range empirical pair-wise potential which is matched to the elastic constants and the vacancy formation energy (2·2 eV). The interstitial formation energy is found to be 8 eV and the most stable divacancy configuration occurs at a separation of [2, 0, 0]α with a binding energy of 0·33 eV.

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