تقرير
Synthesis of ErFeAsO-based superconductors by hydrogen doping method
| العنوان: | Synthesis of ErFeAsO-based superconductors by hydrogen doping method |
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| المؤلفون: | Shirage, Parasharam M., Miyazawa, Kiichi, Kihou, Kunihiro, Lee, Chul-Ho, Kito, Hijiri, Tokiwa, Kazuyasu, Tanaka, Yasumoto, Eisaki, Hiroshi, Iyo, Akira |
| سنة النشر: | 2010 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Superconductivity |
| الوصف: | Here we demonstrate the technique to stabilize the ErFeAsO-based superconductor with the smallest lattice constants in LnFeAsO1-y (Ln = lanthanide) series using hydrogen doping method. Polycrystalline samples were synthesized by heating pellets with nominal compositions of ErFeAsO1-y (1-y = 0.75 ~ 0.95) sandwiched between pellets of LaFeAsO0.8H0.8 compositions at 1100 {\deg}C under a pressure of 5.0 - 5.5 GP. The sample with lattice constants of a = 3.8219 {\AA} and c = 8.2807 {\AA} shows the highest superconducting critical temperatures (Tc) of 44.5 K and 41.0 K determined by onset transitions of resistivity and susceptibility, respectively. We discuss phase diagram of Ln dependence of Tc in LnFeAsO-based superconductors. Comment: 12 Pages, 5 Figures, Accepted for publication in EPL |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1209/0295-5075/92/57011 |
| URL الوصول: | http://arxiv.org/abs/1011.5022 |
| رقم الأكسشن: | edsarx.1011.5022 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1209/0295-5075/92/57011 |
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