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, and Y. Sone
TL;DR
This study uses Raman scattering to investigate magnetic and electronic excitations in BaFe2As2, revealing the behavior of magnon excitations and the nodal SDW gap across the SDW transition, with comparisons to cuprate superconductors.
Contribution
It provides new insights into the magnetic and electronic excitations associated with the SDW transition in BaFe2As2 using Raman spectroscopy.
Findings
Nodal SDW gap opens below TSDW.
Two-magnon peak persists above TSDW with increased energy.
Comparison made between SDW transition in BaFe2As2 and cuprate superconductors.
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.
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
Taxonomy
TopicsIron-based superconductors research · Intellectual Capital and Performance Analysis · Magnetic and transport properties of perovskites and related materials