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  Electron-phonon coupling in 122 Fe pnictides analyzed by femtosecond time-resolved photoemission

Rettig, L., Cortés, R., Jeevan, H. S., Gegenwart, P., Wolf, T., Fink, J., et al. (2013). Electron-phonon coupling in 122 Fe pnictides analyzed by femtosecond time-resolved photoemission. New Journal of Physics, 15(8): 083023. doi:10.1088/1367-2630/15/8/083023.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-0014-4EE6-A Version Permalink: https://hdl.handle.net/11858/00-001M-0000-002B-2E04-7
Genre: Journal Article

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1367-2630_15_8_083023.pdf (Publisher version), 701KB
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2013
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http://creativecommons.org/licenses/by/2.0/uk/

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 Creators:
Rettig, L.1, 2, Author
Cortés, Rocia2, 3, Author           
Jeevan, H. S.4, Author
Gegenwart, P.4, Author
Wolf, T.5, Author
Fink, J.6, Author
Bovensiepen, U.1, Author
Affiliations:
1Fakultät für Physik, Universität Duisburg-Essen, Lotharstrasse 1, D-47048 Duisburg, Germany , ou_persistent22              
2Fachbereich Physik, Freie Universität Berlin, Arnimallee 14, D-14195 Berlin, Germany , ou_persistent22              
3Physical Chemistry, Fritz Haber Institute, Max Planck Society, ou_634546              
4 I Physikalisches Institut, Georg-August Universität Göttingen, D-37077 Göttingen, Germany , ou_persistent22              
5Karlsruhe Institute of Technology, Institut für Festkörperphysik, D-76021 Karlsruhe, Germany , ou_persistent22              
6Leibniz-Institute for Solid State and Materials Research Dresden, PO Box 270116, D-01171 Dresden, Germany , ou_persistent22              

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 Abstract: Based on the results from femtosecond time-resolved photoemission, we compare three different methods for the determination of the electron–phonon coupling constant λ in Eu- and Ba-based 122 FeAs compounds. We find good agreement between all three methods, which reveal a small λ < 0.2. This makes simple electron–phonon-mediated superconductivity unlikely in these compounds.

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Language(s): eng - English
 Dates: 2013-04-182013-08-09
 Publication Status: Published online
 Pages: 11
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1088/1367-2630/15/8/083023
 Degree: -

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Title: New Journal of Physics
  Other : New J. Phys.
Source Genre: Journal
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Publ. Info: Bristol, UK : Institute of Physics Pub.
Pages: - Volume / Issue: 15 (8) Sequence Number: 083023 Start / End Page: - Identifier: ISSN: 1367-2630
CoNE: https://pure.mpg.de/cone/journals/resource/954926913666