Incompatibility of modulated checkerboard patterns with the neutron scattering resonance peak in cuprate superconductors

Details Incompatibility of modulated checkerboard patterns with the neutron scattering resonance peak in cuprate superconductors Incompatibility of modulated checkerboard patterns with the neutron scattering resonance peak in cuprate superconductors

2007-08-15

arxiv.org/abs/0708.1966v3

Phys. Rev. B 77, 024503 (2008)

Physics

Condensed Matter

Superconductivity

5 pages, 5 figures, Fig.2 updated

Scientific paper

10.1103/PhysRevB.77.024503

Checkerboard patterns have been proposed in order to explain STM experiments on the cuprates BSCCO and Na-CCOC. However the presence of these patterns has not been confirmed by a bulk probe such as neutron scattering. In particular, simple checkerboard patterns are inconsistent with neutron scattering data, in that they have low energy incommsensurate (IC) spin peaks rotated 45 degrees from the direction of the charge IC peaks. However, it is unclear whether other checkerboard patterns can solve the problem. In this paper, we have studied more complicated checkerboard patterns ("modulated checkerboards") by using spin wave theory and analyzed noncollinear checkerboards as well. We find that the high energy response of the modulated checkerboards is inconsistent with neutron scattering results, since they fail to exhibit a resonance peak at (pi,pi), which has recently been shown to be a universal feature of cuprate superconductors. We further argue that the newly proposed noncollinear checkerboard also lacks a resonance peak. We thus conclude that to date no checkerboard pattern has been proposed which satisfies both the low energy constraints and the high energy constraints imposed by the current body of experimental data in cuprate superconductors.

Affiliated with

Also associated with

No associations

Rating

Incompatibility of modulated checkerboard patterns with the neutron scattering resonance peak in cuprate superconductors 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 Incompatibility of modulated checkerboard patterns with the neutron scattering resonance peak in cuprate superconductors, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Incompatibility of modulated checkerboard patterns with the neutron scattering resonance peak in cuprate superconductors will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-380361