Spin dynamics in electron-doped pnictide superconductors

Details Spin dynamics in electron-doped pnictide superconductors Spin dynamics in electron-doped pnictide superconductors

2010-03-12

arxiv.org/abs/1003.2609v1

Physics

Condensed Matter

Superconductivity

5 pages, 2 figures

Scientific paper

The doping dependence of spin excitations in Ba(Fe$_{1-x}$Co$_{x}$)$_{2}$As$_{2}$ is studied based on a two-orbital model under RPA approximation. The interplay between the spin-density-wave (SDW) and superconductivity (SC) is considered in our calculation. Our results for the spin susceptibility are in good agreement with neutron scattering (NS) experiments in various doping ranges at temperatures (T) above and below the superconducting transition temperature T$_{c}$. For the overdoped sample where one of the two hole pockets around $\Gamma$ point disappears according to ARPES, we show that the imaginary part of the spin susceptibility in both SC and normal phases exhibits a gap-like behavior. This feature is consistent with the "pseudogap" as observed by recent NMR and NS experiments.

Affiliated with

Also associated with

No associations

Rating

Spin dynamics in electron-doped pnictide 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 Spin dynamics in electron-doped pnictide superconductors, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spin dynamics in electron-doped pnictide superconductors will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-190792