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Direct observation of optically induced transient structures in graphite using ultrafast electron crystallography
Ramani K. Raman, Yoshie Murooka, Chong-Yu Ruan +3
We use ultrafast electron crystallography to study structural changes induced in graphite by a femtosecond laser pulse. At moderate fluences of ~< 21mJ/cm^2, lattice vibrations are…
Transforming carbon nanotubes by silylation: An ab initio study
Kiseok Chang, Savas Berber, David Tomanek
We use ab initio density functional calculations to study the chemical functionalization of single-wall carbon nanotubes and graphene monolayers by silyl (SiH3) radicals and hydrog…
Diameter-dependent conductance oscillations in carbon nanotubes upon torsion
K. S. Nagapriya, Savas Berber, Tzahi Cohen-Karni +4
We combine electromechanical measurements with {\em ab initio} density functional calculations to settle the controversy about the origin of torsion-induced conductance oscillation…
Interplay between structure and magnetism in nanowires
Teng Yang, Shinya Okano, Savas Berber +1
We investigate the equilibrium geometry and electronic structure of MoSI nanowires using ab initio Density Functional calculations. The skeleton of these unusual…
Electronic and Structural Properties of Carbon Nano-Horns
Savas Berber, Young-Kyun Kwon, David Tomanek
We use parametrized linear combination of atomic orbitals calculations to determine the stability, optimum geometry and electronic properties of nanometer-sized capped graphitic co…
Unusually High Thermal Conductivity of Carbon Nanotubes
Savas Berber, Young-Kyun Kwon, David Tomanek
Combining equilibrium and non-equilibrium molecular dynamics simulations with accurate carbon potentials, we determine the thermal conductivity of carbon nanotubes and its depe…