Dielectric anomaly in coupled rotor systems
arXiv:cond-mat/0407050 · doi:10.1103/PhysRevB.69.035202
Abstract
The correlated dynamics of coupled quantum rotors carrying electric dipole moment is theoretically investigated. The energy spectra of coupled rotors as a function of dipolar interaction energy is analytically solved. The calculated dielectric susceptibilities of the system show the peculiar temperature dependence different from that of isolated rotors.
5 pages, 4 figures (Figure 2 is available on request from shima@eng.hokudai.ac.jp)