Now showing items 1-5 of 5

    • Conductance through atomic contacts created by scanning tunneling microscopy 

      Kiliç, Ç.; Mehrez, H.; Çıracı, Salim; Batra, I. P. (Elsevier, 1999)
      We investigate conductance through contacts created by pressing a hard tip, as used in scanning tunneling microscopy, against substrates. Two different substrates are considered, one a normal metal (Cu) and another a ...
    • A First-principles Study of the Structure and Dynamics of C8H8, Si8H8, and Ge8H8 Molecules 

      Kiliç, Ç.; Yildirim, T.; Mehrez, H.; Çıracı, Salim (American Chemical Society, 2000)
      We present a first-principles study to elucidate the nature of the bonding, stability, energetics, and dynamics of individual X8H8 molecules (X = C, Si, Ge). The results obtained from both "local basis" and "pseudopotential" ...
    • Pressure-induced interlinking of carbon nanotubes 

      Yildirim, T.; Gülseren, O.; Kiliç, Ç.; Çıracı, Salim (American Physical Society, 2000)
      We predict new forms of carbon consisting of one- and two-dimensional networks of interlinked single-wall carbon nanotubes, some of which are energetically more stable than van der Waals packing of the nanotubes on a ...
    • Quantum point contact on graphite surface 

      Kiliç, Ç.; Mehrez, H.; Çıracı, Salim (American Physical Society, 1998)
      The conductance through a quantum point contact created by a sharp and hard metal tip on the graphite surface has features which to our knowledge have not been encountered so far in metal contacts or in nanowires. In this ...
    • Vibrations of the cubane molecule: inelastic neutron scattering study and theory 

      Yildirim, T.; Kiliç, Ç.; Çıracı, Salim; Gehring, P. M.; Neumann, D. A.; Eaton, P. E.; Emrick, T. (Elsevier, 1999-08-13)
      Cubane (C8H8) is an immensely strained molecule whose C-C-C bond angle is 90 degrees rather than 109.5 degrees as expected for sp(3) bonding of carbon. We have measured the intramolecular vibrational spectrum of cubane ...