Spectroscopic evidences of quantum critical charge fluctuations in cuprates

Details Spectroscopic evidences of quantum critical charge fluctuations in cuprates Spectroscopic evidences of quantum critical charge fluctuations in cuprates

2006-11-27

arxiv.org/abs/cond-mat/0611679v1

Physics

Condensed Matter

Strongly Correlated Electrons

Proceedings of M2S 2006. To appear in Physica C

Scientific paper

10.1016/j.physc.2007.03.371

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.

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