Enhanced superconductivity in surface-electron-doped iron pnictide Ba(Fe1.94Co0.06)2As2

W. S. Kyung,Soonsang Huh,Y. Y. Koh,K.-Y. Choi,M Nakajima,Hiroshi Eisaki,Jonathan D. Denlinger,S. K. Mo,Chul Koo Kim,Yeongkwan Kim

Enhanced superconductivity in surface-electron-doped iron pnictide Ba(Fe1.94Co0.06)2As2

2016

W. S. Kyung
Soonsang Huh
Y. Y. Koh
K.-Y. Choi
M Nakajima
Hiroshi Eisaki
Jonathan D. Denlinger
S. K. Mo
Chul Koo Kim
Yeongkwan Kim

Angle-resolved photoemission spectroscopy shows that the superconducting critical temperature in optimally doped iron pnictide Ba(Fe1−xCox)2As2 can be enhanced upon Na/K surface doping.

Keywords:

Photoemission spectroscopy
Critical point (thermodynamics)
Condensed matter physics
Materials science
Doping
Superconductivity
Electron
Pnictogen
Electronic structure
Monolayer
Instability
Fermi surface

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