19F NMR investigation of the iron pnictide superconductor LaFeAsO0.89F0.11

被引：117

作者：

Ahilan, K. ^{[1
]}

Ning, F. L. ^{[1
]}

Imai, T. ^{[1
,2
]}

Sefat, A. S. ^{[3
]}

Jin, R. ^{[3
]}

McGuire, M. A. ^{[3
]}

Sales, B. C. ^{[3
]}

Mandrus, D. ^{[3
]}

机构：

[1] McMaster Univ, Dept Phys & Astron, Hamilton, ON L8S 4M1, Canada

[2] Canadian Inst Adv Res, Toronto, ON M5G 1Z8, Canada

[3] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA

来源：

PHYSICAL REVIEW B | 2008年 / 78卷 / 10期

基金：

加拿大自然科学与工程研究理事会;

关键词：

D O I：

10.1103/PhysRevB.78.100501

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report on F-19 nuclear magnetic resonance (NMR) investigation of the high-temperature superconductor LaFeAsO0.89F0.11 (T-c similar to 28 K). We demonstrate that low-frequency spin fluctuations exhibit pseudogap behavior above T-c. We also deduce the London penetration depth lambda from NMR line broadening below T-c.

引用

页数：4

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