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Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2011, Volume 93, Issue 2, Pages 95–100 (Mi jetpl1813)  
This article is cited in 20 scientific papers (total in 20 papers)

CONDENSED MATTER

Observation of Multi-Gap Superconductivity in GdO(F)FeAs by Andreev Spectroscopy

T. E. Shanyginaab, Ya. G. Ponomarevb, S. A. Kuzmichevb, M. G. Mikheevb, S. N. Tchesnokovb, O. E. Omel'yanovskiiac, A. V. Sadakovac, Yu. F. Eltseva, A. S. Dormidontova, V. M. Pudalovad, A. S. Usoltsevad, E. P. Khlybovec

a P. N. Lebedev Physical Institute RAS, 119991 Moscow, Russia
b Department of Low Temperature Physics and Superconductivity, Moscow State University, 119991 Moscow, Russia
c International Laboratory of High Magnetic Fields and Low Temperatures, 53-421 Wroclaw, Poland
d Moscow Institute of Physics and Technology, 141700 Moscow, Russia
e Institute for High Pressure Physics RAS, 142190 Troitsk, Moscow district, Russia
Full-text PDF (267 kB) Citations (20)
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Abstract: We have studied current-voltage characteristics of Andreev contacts in polycrystalline GdO$_{0.88}$F$_{0.12}$FeAs samples with bulk critical temperature $T_c$ = (52.5 $\pm$ 1) K using break-junction technique. The data obtained cannot be described within the single-gap approach and suggests the existence of a multi-gap superconductivity in this compound. The large and small superconducting gap values estimated at $T = 4.2$ K are $\Delta_L=10.5\pm 2$ meV and $\Delta_S$ = $2.3 \pm 0.4$ meV, respectively.
Received: 09.12.2010
English version:
Journal of Experimental and Theoretical Physics Letters, 2011, Volume 93, Issue 2, Pages 94–98
DOI: https://doi.org/10.1134/S0021364011020111
Bibliographic databases:
Document Type: Article
Language: English
Citation: T. E. Shanygina, Ya. G. Ponomarev, S. A. Kuzmichev, M. G. Mikheev, S. N. Tchesnokov, O. E. Omel'yanovskii, A. V. Sadakov, Yu. F. Eltsev, A. S. Dormidontov, V. M. Pudalov, A. S. Usoltsev, E. P. Khlybov, “Observation of Multi-Gap Superconductivity in GdO(F)FeAs by Andreev Spectroscopy”, Pis'ma v Zh. Èksper. Teoret. Fiz., 93:2 (2011), 95–100; JETP Letters, 93:2 (2011), 94–98
Citation in format AMSBIB
\Bibitem{ShaPonKuz11}
\by T.~E.~Shanygina, Ya.~G.~Ponomarev, S.~A.~Kuzmichev, M.~G.~Mikheev, S.~N.~Tchesnokov, O.~E.~Omel'yanovskii, A.~V.~Sadakov, Yu.~F.~Eltsev, A.~S.~Dormidontov, V.~M.~Pudalov, A.~S.~Usoltsev, E.~P.~Khlybov
\paper Observation of Multi-Gap Superconductivity in GdO(F)FeAs by Andreev Spectroscopy
\jour Pis'ma v Zh. \`Eksper. Teoret. Fiz.
\yr 2011
\vol 93
\issue 2
\pages 95--100
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\jour JETP Letters
\yr 2011
\vol 93
\issue 2
\pages 94--98
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    • This publication is cited in the following 20 articles:
    Citing articles in Google Scholar: Russian citations, English citations
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    		Письма в Журнал экспериментальной и теоретической физики Pis'ma v Zhurnal Иksperimental'noi i Teoreticheskoi Fiziki
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