Electronic theory for screw dislocation in b.c.c. transition metals

DOI Web Site 3 Citations
  • Kin-Ichi Masuda
    a Department of Materials Science and Engineering , Tokyo Institute of Technology, Ookayama , Meguro, Tokyo , 152 , Japan
  • Akikazu Sato
    a Department of Materials Science and Engineering , Tokyo Institute of Technology, Ookayama , Meguro, Tokyo , 152 , Japan

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  • Calculation of the peierls stress and the core energy

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Abstract A simple calculation of the Peierls stress and the core energy of the screw dislocation in b.c.c. transition metals is presented. The d-electrons are treated in a tight-binding approximation and Born-Mayer type potentials are used to simulate the repulsive core—core interactions at short distances. Numerical results are compared with experiments as well as the previous calculations based on the empirical pair potentials.

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