• Melting transition of two-dimensional crystals 

      Holz, Arno; Medeiros, Joacir Thadeu Nascimento (1978) [Artigo de periódico]
      The solíd-liquíd phase transítíon (PT) in two-dímensional crystals is studied under the assumption that it ís driven by the díssocíation of elastic dípoles. It ís shown that thís PT ís of tirst-order and corresponds to a ...
    • Metastable acceptor centers in boron implanted silicon 

      Souza, Joel Pereira de; Boudinov, Henri Ivanov (1995) [Artigo de periódico]
      The evolution of the electrical activation with the annealing time in B1 implanted (5.0 31014 cm22, 50 keV! Si was studied as a function of the annealing temperature. Electrical activation yields of 15%–30% were observed ...
    • Microscopic formulation of a lattice-defect model 

      Holz, Arno (1979) [Artigo de periódico]
      A microscopic construction method of lattice defects which can be represented by dislocation configurations in simple-cubic lattices and for interaction by central forces is given. In contrast to standard theories, where ...