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Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2011, Volume 93, Issue 5, Pages 317–320
(Mi jetpl1850)
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This article is cited in 5 scientific papers (total in 5 papers)
CONDENSED MATTER
Vortex structure in FeTeSe single crystals
L. Ya. Vinnikova, A. V. Radaevab, I. S. Veshchunova, A. G. Troshinac, Y. Liud, C. T. Lind, A. V. Borisd a Institute of Solid State Physics, Russian Academy of Sciences
b Moscow Institute of Physics and Technology
c M. V. Lomonosov Moscow State University
d Max Planck Institute for Solid State Research
Abstract:
Vortex structure in FeTe$_{0.66}$Se$_{0.44}$ and FeTe$_{0.6}$Se$_{0.4}$ single crystals with $T_c \sim 11.7$ К and $14.5$ K, respectively, has been studied using the decoration technique. It has been found that in single crystals with the simplest crystalline structure of 11-family iron-containing superconductors (without interlayers), no regular vortex lattice is observed, similar to the case of the previously studied 122 and 1111 families. Using transmission electron microscopy, the dislocation structure with a density of $\sim 10^9$ cm$^{-2}$ has been observed. The problem of pinning in iron-containing superconductor single crystals is discussed.
Received: 03.02.2011
Citation:
L. Ya. Vinnikov, A. V. Radaev, I. S. Veshchunov, A. G. Troshina, Y. Liu, C. T. Lin, A. V. Boris, “Vortex structure in FeTeSe single crystals”, Pis'ma v Zh. Èksper. Teoret. Fiz., 93:5 (2011), 317–320; JETP Letters, 93:5 (2011), 287–289
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https://www.mathnet.ru/eng/jetpl1850 https://www.mathnet.ru/eng/jetpl/v93/i5/p317
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