Magnetic and Electronic Raman Scattering at the Nodal Spin-Density-Wave Transition in BaFe2As2

S. Sugai; Y. Mizuno; R. Watanabe; T. Kawaguchi; K. Takenaka; H. Ikuta; Y. Takayanagi; N. Hayamizu; Y. Sone

Magnetic and Electronic Raman Scattering at the Nodal Spin-Density-Wave Transition in BaFe2As2

Superconductivity 2010-11-01 v1 Strongly Correlated Electrons

Authors: S. Sugai , Y. Mizuno , R. Watanabe , T. Kawaguchi , K. Takenaka , H. Ikuta , Y. Takayanagi , N. Hayamizu , Y. Sone

View on arXiv ↗ PDF ↗

Abstract

Two magnon excitations and the nodal spin density wave (SDW) gap were observed in BaFe2As2 by Raman scattering. Below the SDW transition temperature (TSDW) nodal SDW gap opens together with new excitations in reconstructed electronic states. The two-magnon peak remains above TSDW and moreover the energy increases a little. The change from the long-range ordered state to the short-range correlated state is compared to the cuprate superconductors.

Keywords

Raman scattering spin density wave BaFe2As2 two-magnon excitation nodal gap iron-based superconductor

Cite

@article{arxiv.1010.6151,
  title  = {Magnetic and Electronic Raman Scattering at the Nodal Spin-Density-Wave Transition in BaFe2As2},
  author = {S. Sugai and Y. Mizuno and R. Watanabe and T. Kawaguchi and K. Takenaka and H. Ikuta and Y. Takayanagi and N. Hayamizu and Y. Sone},
  journal= {arXiv preprint arXiv:1010.6151},
  year   = {2010}
}

Comments

5 pages, 3 figures

Magnetic and Electronic Raman Scattering at the Nodal Spin-Density-Wave Transition in BaFe2As2

Abstract

Keywords

Cite

Comments

Related papers