Optical study of the spin-density-wave properties of single-crystalline Na1-δFeAs

被引：16

作者：

Hu, W. Z. ^{[1
]}

Li, G. ^{[1
]}

Zheng, P. ^{[1
]}

Chen, G. F. ^{[1
]}

Luo, J. L. ^{[1
]}

Wang, N. L. ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China

来源：

PHYSICAL REVIEW B | 2009年 / 80卷 / 10期

关键词：

SUPERCONDUCTIVITY; GAP;

D O I：

10.1103/PhysRevB.80.100507

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report an optical investigation on the ab plane charge dynamics for Na1-delta FeAs single crystal. Formation of a partial energy gap is clearly observed in the magnetic ordered phase. Comparing with the optical response of other FeAs-based parent compounds with high magnetic transition temperatures, both the gap value 2 Delta and the energy scale for the gap-induced spectral weight redistribution are smaller in Na1-delta FeAs. The experimental results favor an itinerant origin of the antiferromagnetic transition.

引用

页数：4

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