We report the results of electronic Raman scattering experiments on an overdoped La(1.78)Sr(0.22)CuO(4) single crystal as a function of temperature. The scattering rate Gamma(w->0,T) has been determined from the normal state B(1g) spectra in the range 50 K < T < 300 K. Gamma(T) decreases linearly from 300 K to about 175 K and then undergoes a reduction with respect to the expected mean-field behavior. This trend suggests a crossover to pseudoscaling regime at about T(cr)=160 K. The results are in good agreement with the prediction of the nearly antiferromagnetic Fermi liquid model. There is no evidence of a pseudogap in the spectra obtained from this overdoped sample.
@article{arxiv.cond-mat/9711272,
title = {Evidence for Magnetic Pseudoscaling in Overdoped La(2-x)Sr(x)CuO(4)},
author = {J. G. Naeini and X. K. Chen and K. C. Hewitt and J. C. Irwin and T. P. Devereaux and M. Okuya and T. Kimura and K. Kishio},
journal= {arXiv preprint arXiv:cond-mat/9711272},
year = {2009}
}
Comments
RevTex, 4 pages with 3 PS figures included, replaced with minor changes in the text and references