تقرير
Gap opening and orbital modification of superconducting FeSe above the structural distortion
| العنوان: | Gap opening and orbital modification of superconducting FeSe above the structural distortion |
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| المؤلفون: | Wen, Y. -C., Wang, K. -J., Chang, H. -H., Luo, J. -Y., Shen, C. -C., Liu, H. -L., Sun, C. -K., Wang, M. -J., Wu, M. -K. |
| سنة النشر: | 2012 |
| المجموعة: | Condensed Matter Physics (Other) |
| مصطلحات موضوعية: | Condensed Matter - Superconductivity, Physics - Optics |
| الوصف: | We utilize steady-state and transient optical spectroscopies to examine the responses of nonthermal quasiparticles with respect to orbital modifications in normal-state iron-chalcogenide superconductors. The dynamics shows the emergence of gap-like quasiparticles (associated to a ~36 meV energy gap) with a coincident transfer of the optical spectral weight in the visible range, at temperatures above the structural distortion. Our observations suggest that opening of the high-temperature gap and the lattice symmetry breaking are possibly driven by short-range orbital and/or charge orders, implicating a close correlation between electronic nematicity and precursor order in iron-based superconductors. |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevLett.108.267002 |
| URL الوصول: | http://arxiv.org/abs/1202.0658 |
| رقم الأكسشن: | edsarx.1202.0658 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevLett.108.267002 |
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