تقرير
Structural Features of Layered Iron Pnictide Oxides (Fe2As2)(Sr4M2O6)
| العنوان: | Structural Features of Layered Iron Pnictide Oxides (Fe2As2)(Sr4M2O6) |
|---|---|
| المؤلفون: | Ogino, H., Sato, S., Matsumura, Y., Kawaguchi, N., Ushiyama, K., Katsura, Y., Horii, S., Kishio, K., Shimoyama, J. |
| سنة النشر: | 2010 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Superconductivity |
| الوصف: | Structural features of newly found perovskite-based iron pnictide oxide system have been systematically studied. Compared to REFePnO system, perovskite-based system tend to have lower Pn-Fe-Pn angle and higher pnictogen height owing to low electronegativity of alkaline earth metal and small repulsive force between pnictogen and oxygen atoms. As-Fe-As angles of (Fe2As2)(Sr4Cr2O6), (Fe2As2)(Sr4V2O6) and (Fe2Pn2)(Sr4MgTiO6) are close to ideal tetrahedron and those pnictogen heights of about 1.40 A are close to NdFeAsO with optimized carrier concentration. These structural features of this system may leads to realization of high Tc superconductivity. Comment: 3pages, 2figures, 1table, proceedings of M2S 2009 |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1016/j.physc.2009.10.099 |
| URL الوصول: | http://arxiv.org/abs/1006.2351 |
| رقم الأكسشن: | edsarx.1006.2351 |
| قاعدة البيانات: | arXiv |
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