$Observation of Momentum-Confined In-Gap Impurity State in Ba_{0.6}K_{0.4}Fe_{2}As_{2}: Evidence for Antiphase s_{±} Pairing$

Observation of Momentum-Confined In-Gap Impurity State in Ba_{0.6}K_{0.4}Fe_{2}As_{2}: Evidence for Antiphase s_{±} Pairing

We report the observation by angle-resolved photoemission spectroscopy of an impurity state located inside the superconducting gap of Ba_{0.6}K_{0.4}Fe_{2}As_{2} and vanishing above the superconducting critical temperature, for which the spectral weight is confined in momentum space near the Fermi w...

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Bibliographic Details
Main Authors:	P. Zhang, P. Richard, T. Qian, X. Shi, J. Ma, L.-K. Zeng, X.-P. Wang, E. Rienks, C.-L. Zhang, Pengcheng Dai, Y.-Z. You, Z.-Y. Weng, X.-X. Wu, J. P. Hu, H. Ding
Format:	Article
Language:	English
Published:	American Physical Society 2014-07-01
Series:	Physical Review X
Online Access:	http://doi.org/10.1103/PhysRevX.4.031001

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http://doi.org/10.1103/PhysRevX.4.031001

Observation of Momentum-Confined In-Gap Impurity State in Ba_{0.6}K_{0.4}Fe_{2}As_{2}: Evidence for Antiphase s_{±} Pairing

Internet

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