Evaluation of superconducting gaps in optimally doped Ba(Fe sub(1-) sub(x)Co sub(x)) sub(2)As sub(2)/Fe bilayers by ultrafast time-resolved spectroscopy
Measurements of nonequilibrium quasi-particle relaxation dynamics by using ultrafast pump and probe technique in optimally Co-doped Ba(Fe sub(2)As sub(2))/Fe thin film has been reported. Multiple relaxation processes are present with BCS-like temperature-dependent superconducting gaps Delta sub(0) =...
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| Veröffentlicht in: | Physica. C, Superconductivity Superconductivity, 2014-08, Vol.503, p.132-135 |
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| container_title | Physica. C, Superconductivity |
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| creator | Bonavolonta, C Lisio, Cde Valentino, M Parlato, L Pepe, G P Kurth, F Iida, K |
| description | Measurements of nonequilibrium quasi-particle relaxation dynamics by using ultrafast pump and probe technique in optimally Co-doped Ba(Fe sub(2)As sub(2))/Fe thin film has been reported. Multiple relaxation processes are present with BCS-like temperature-dependent superconducting gaps Delta sub(0) = (3.67 plus or minus 0.13) meV and Delta sub(1) = (6.1 plus or minus 0.1) meV, which are calculated considering the conventional electron-boson and spin fluctuations pairing mechanism. Then, the value of the electron-phonon coupling constant of lambda = 0.18 has been obtained. |
| doi_str_mv | 10.1016/j.physc.2014.04.013 |
| format | Article |
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Multiple relaxation processes are present with BCS-like temperature-dependent superconducting gaps Delta sub(0) = (3.67 plus or minus 0.13) meV and Delta sub(1) = (6.1 plus or minus 0.1) meV, which are calculated considering the conventional electron-boson and spin fluctuations pairing mechanism. Then, the value of the electron-phonon coupling constant of lambda = 0.18 has been obtained.</description><identifier>ISSN: 0921-4534</identifier><identifier>DOI: 10.1016/j.physc.2014.04.013</identifier><language>eng</language><subject>Constants ; Fluctuation ; Iron ; Mathematical analysis ; Optimization ; Pumps ; Superconductivity ; Thin films</subject><ispartof>Physica. 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C, Superconductivity</title><description>Measurements of nonequilibrium quasi-particle relaxation dynamics by using ultrafast pump and probe technique in optimally Co-doped Ba(Fe sub(2)As sub(2))/Fe thin film has been reported. Multiple relaxation processes are present with BCS-like temperature-dependent superconducting gaps Delta sub(0) = (3.67 plus or minus 0.13) meV and Delta sub(1) = (6.1 plus or minus 0.1) meV, which are calculated considering the conventional electron-boson and spin fluctuations pairing mechanism. 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Multiple relaxation processes are present with BCS-like temperature-dependent superconducting gaps Delta sub(0) = (3.67 plus or minus 0.13) meV and Delta sub(1) = (6.1 plus or minus 0.1) meV, which are calculated considering the conventional electron-boson and spin fluctuations pairing mechanism. Then, the value of the electron-phonon coupling constant of lambda = 0.18 has been obtained.</abstract><doi>10.1016/j.physc.2014.04.013</doi></addata></record> |
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| ispartof | Physica. C, Superconductivity, 2014-08, Vol.503, p.132-135 |
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| language | eng |
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| source | ScienceDirect Journals (5 years ago - present) |
| subjects | Constants Fluctuation Iron Mathematical analysis Optimization Pumps Superconductivity Thin films |
| title | Evaluation of superconducting gaps in optimally doped Ba(Fe sub(1-) sub(x)Co sub(x)) sub(2)As sub(2)/Fe bilayers by ultrafast time-resolved spectroscopy |
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