Author(s): Hiroki Gomi, Takayuki Imai, Akira Takahashi, and Masaki Aihara
We theoretically describe purely electronic polarization modes in terahertz frequency region in dimer Mott insulators κ-(BEDT-TTF)2X . The unusual low-frequency modes arise from the coupling between the oscillation of intradimer electric dipole moments and that of alternating interdimer bond orders...
[Phys. Rev. B 82, 035101] Published Thu Jul 01, 2010
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