Spectroscopic evidences of quantum critical charge fluctuations in cuprates
Strongly Correlated Electrons
2009-11-11 v1 Superconductivity
Abstract
We calculate the optical conductivity in a clean system of quasiparticles coupled to charge-ordering collective modes. The absorption induced by these modes may produce an anomalous frequency and temperature dependence of low-energy optical absorption in some cuprates. However, the coupling with lattice degrees of freedom introduces a non-universal energy scale leading to scaling violation in low-temperature optical conductivity.
Keywords
Cite
@article{arxiv.cond-mat/0611679,
title = {Spectroscopic evidences of quantum critical charge fluctuations in cuprates},
author = {M. Grilli and S. Caprara and C. Di Castro and D. Suppa},
journal= {arXiv preprint arXiv:cond-mat/0611679},
year = {2009}
}
Comments
Proceedings of M2S 2006. To appear in Physica C