Optical Sum Rule anomalies in the High-Tc Cuprates

Details Optical Sum Rule anomalies in the High-Tc Cuprates Optical Sum Rule anomalies in the High-Tc Cuprates

2009-11-05

arxiv.org/abs/0911.1094v1

J. Superconductivity and Novel Magnetism 22, 269-273 (2009)

Physics

Condensed Matter

Superconductivity

4 pages, 2 figures, very brief review of optical sum rule anomaly

Scientific paper

10.1007/s10948-008-0430-0

We provide a brief summary of the observed sum rule anomalies in the high-T$_c$ cuprate materials. A recent issue has been the impact of a non-infinite frequency cutoff in the experiment. In the normal state, the observed anomalously high temperature dependence can be explained as a `cutoff effect'. The anomalous rise in the optical spectral weight below the superconducting transition, however, remains as a solid experimental observation, even with the use of a cutoff frequency.

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