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cond-mat.mtrl-sci2005★ 514 cited
Exciton binding energies in carbon nanotubes from two-photon photoluminescence
J. Maultzsch, R. Pomraenke, S. Reich +7
One- and two-photon luminescence excitation spectroscopy showed a series of distinct excitonic states in single-walled carbon nanotubes. The energy splitting between one- and two-p…
cond-mat.mtrl-sci2004★ 1 cited
Dynamical Matrices and Interatomic-Force Constants from Wave-Commensurate Supercells
Hadley M. Lawler, Eric K. Chang, Eric L. Shirley
We apply standard, first-principles calculations to a complete treatment of lattice dynamics in the harmonic approximation. The algorithm makes use of the straightforward ``frozen-…