تقرير
Two- and Three-Dimensional Fermi Surfaces and their Nesting Properties in Superconducting BaFe2(As1-xPx)2
| العنوان: | Two- and Three-Dimensional Fermi Surfaces and their Nesting Properties in Superconducting BaFe2(As1-xPx)2 |
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| المؤلفون: | Yoshida, T., Nishi, I., Ideta, S., Fujimori, A., Kubota, M., Ono, K., Kasahara, S., Shibauchi, T., Terashima, T., Matsuda, Y., Ikeda, H., Arita, R. |
| المصدر: | Phys. Rev. Lett. 106, 117001 (2011) |
| سنة النشر: | 2010 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Superconductivity, Condensed Matter - Strongly Correlated Electrons |
| الوصف: | We have studied the three-dimensional shapes of the Fermi surfaces (FSs) of BaFe2(As1-xPx)2 (x=0.38), where superconductivity is induced by isovalent P substitution, by angle-resolved photoemission spectroscopy. Moderately strong electron mass enhancement has been identified for both the electron and hole FSs. Among two observed hole FSs, the nearly two-dimensional one shows good nesting with the outer two-dimensional electron FS, but its orbital character is different from the outer electron FS. The three-dimensional hole FS shows poor nesting with the electron FSs. The present results suggest that the three-dimensionality and the difference in the orbital character weaken FS nesting, leaving partial nesting among the outer electron FSs of dxy character and/or that within the three-dimensional hole FS, which may lead to the nodal superconductivity. Comment: 4 pages, 4 figures |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevLett.106.117001 |
| الوصول الحر: | http://arxiv.org/abs/1008.2080Test |
| رقم الانضمام: | edsarx.1008.2080 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevLett.106.117001 |
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