On the contribution of nearly-critical spin and charge collective modes to the Raman spectra of high-Tc cuprates

Details On the contribution of nearly-critical spin and charge collective modes to the Raman spectra of high-Tc cuprates On the contribution of nearly-critical spin and charge collective modes to the Raman spectra of high-Tc cuprates

2008-05-28

arxiv.org/abs/0805.4291v1

Physics

Condensed Matter

Superconductivity

5 pages, 3 figures

Scientific paper

10.1016/j.jmmm.2008.11.025

We discuss how Raman spectra are affected by nearly-critical spin and charge collective modes, which are coupled to charge carriers near a stripe quantum critical point. We show that specific fingerprints of nearly-critical collective modes can indeed be observed in Raman spectra and that the selectivity of Raman spectroscopy in momentum space may also be exploited to distinguish the spin and charge contribution. We apply our results to discuss the spectra of high-Tc superconducting cuprates finding that the collective modes should have masses with substantial temperature dependence in agreement with their nearly critical character. Moreover spin modes should be more diffusive than charge modes indicating that in stripes the charge is nearly ordered, while spin modes are strongly overdamped and fluctuate with high frequency.

Affiliated with

Also associated with

No associations

Rating

On the contribution of nearly-critical spin and charge collective modes to the Raman spectra of high-Tc cuprates does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with On the contribution of nearly-critical spin and charge collective modes to the Raman spectra of high-Tc cuprates, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On the contribution of nearly-critical spin and charge collective modes to the Raman spectra of high-Tc cuprates will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-416246