تقرير
Distinctive Doping Dependence of Upper Critical Field in Iron-Based Superconductor LaFeAsO$_{1-x}$H$_{x}$
العنوان: | Distinctive Doping Dependence of Upper Critical Field in Iron-Based Superconductor LaFeAsO$_{1-x}$H$_{x}$ |
---|---|
المؤلفون: | Kawachi, Shiro, Yamaura, Jun-ichi, Kuramoto, Yoshio, Iimura, Soshi, Nomura, Toshihiro, Kohama, Yoshimitsu, Sasaki, Takashi, Tokunaga, Masashi, Murakami, Youichi, Hosono, Hideo |
سنة النشر: | 2023 |
المجموعة: | Condensed Matter |
مصطلحات موضوعية: | Condensed Matter - Superconductivity |
الوصف: | High magnetic fields up to 105 T have been utilized in deriving the upper critical field $B_{\rm c2}$ of LaFeAsO$_{1-x}$H$_x$ throughout whole temperatures below $T_{\rm c}$. Resistivity measurements demonstrate that $B_{\rm c2}$ behaves differently in samples with $x = 0.12$ (SC1) from those with 0.32 (SC2). In SC1, the two-band model assuming the $s$-wave pairing gives a good fitting with repulsive intraband interaction and dominant interband coupling. In SC2, we have to assume attractive intraband interaction with weak interband coupling, which in fact suggests a non-$s$-wave pairing in view of the strong Coulomb repulsion. These results support the possibility that SC1 and SC2 have different pairing symmetries. |
نوع الوثيقة: | Working Paper |
URL الوصول: | http://arxiv.org/abs/2308.12631 |
رقم الأكسشن: | edsarx.2308.12631 |
قاعدة البيانات: | arXiv |
كن أول من يترك تعليقا!