تقرير
Q Dependence of Magnetic Resonance Mode on FeTe$_{0.5}$Se$_{0.5}$ Studied by Inelastic Neutron Scattering
| العنوان: | Q Dependence of Magnetic Resonance Mode on FeTe$_{0.5}$Se$_{0.5}$ Studied by Inelastic Neutron Scattering |
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| المؤلفون: | Ishikado, Motoyuki, Kodama, Katsuaki, Kajimoto, Ryoichi, Nakamura, Mitsutaka, Inamura, Yasuhiro, Ikeuchi, Kazuhiko, Ji, Sungdae, Arai, Masatoshi, Shamoto, Shin-ichi |
| المصدر: | Condens. Matter 4, 69 (2019) |
| سنة النشر: | 2021 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Superconductivity |
| الوصف: | Inelastic neutron scattering measurements have been performed on a superconducting single crystal FeTe$_{0.5}$Se$_{0.5}$ to examine the ${\bf Q}$-dependent enhancement of the dynamical structure factor, $S({\bf Q},E)$, from ${\bf Q}$ = (0, 0) to ($\pi$, $\pi$), including ($\pi$, 0) in the superconducting state. In most of iron-based superconductors, $S({\bf Q},E)$ is enhanced at ${\bf Q}$ = ($\pi$, 0), where the "magnetic resonance mode" is commonly observed in the unfolded Brillouin zone. Constant-$E$ cuts of $S({\bf Q},E)$ suggest that the enhancement is not uniform in the magnetic excitation, and limited around ${\bf Q}$ = ($\pi$, 0). This result is consistent with the theoretical simulation of the magnetic resonance mode due to the Bardeen$-$Cooper$-$Schrieffer coherence factor with the sign-reversing order parameter of s$_{\pm}$ wave. Comment: 10 pages, 3 figures |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.3390/condmat4030069 |
| URL الوصول: | http://arxiv.org/abs/2108.05051 |
| رقم الأكسشن: | edsarx.2108.05051 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.3390/condmat4030069 |
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