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This article is cited in 8 scientific papers (total in 8 papers)
CONDENSED MATTER
Observation of bosonic resonances in GdO$_{1-x}$F$_x$FeAs by intrinsic multiple Andreev reflection effect spectroscopy
S. A. Kuzmichevab, T. E. Kuzmichevab a Lebedev Physical Institute, Russian Academy of Sciences, Moscow, Russia
b Moscow State University, Moscow, Russia
Abstract:
The current-voltage characteristics and dynamic conductance spectra of Andreev arrays in nearly optimal GdO$_{1-x}$F$_x$FeAs superconductors with the critical temperature $T_{\text{c}}=46{-}50$ K have been studied. A reproducible fine structure that accompanies large gap features and caused by boson emission during the process of multiple Andreev reflections has been observed. At $T=4.2$ K, the bosonic mode energy $\varepsilon_0 = (12 \pm 2)$ meV has been obtained.
Received: 21.03.2017 Revised: 20.04.2017
Citation:
S. A. Kuzmichev, T. E. Kuzmicheva, “Observation of bosonic resonances in GdO$_{1-x}$F$_x$FeAs by intrinsic multiple Andreev reflection effect spectroscopy”, Pis'ma v Zh. Èksper. Teoret. Fiz., 105:10 (2017), 631–636; JETP Letters, 105:10 (2017), 671–676
Linking options:
https://www.mathnet.ru/eng/jetpl5275 https://www.mathnet.ru/eng/jetpl/v105/i10/p631
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