Please use this identifier to cite or link to this item: http://hdl.handle.net/10995/102646
Title: Anisotropy of flux pinning properties in superconducting (Li,Fe)OHFeSe thin films
Authors: Hanisch, J.
Huang, Y.
Li, D.
Yuan, J.
Jin, K.
Dong, X.
Talantsev, E.
Holzapfel, B.
Zhao, Z.
Issue Date: 2020
Publisher: IOP Publishing Ltd
Citation: Anisotropy of flux pinning properties in superconducting (Li,Fe)OHFeSe thin films / J. Hanisch, Y. Huang, D. Li, et al. — DOI 10.1088/1361-6668/abb118 // Superconductor Science and Technology. — 2020. — Vol. 33. — Iss. 11. — 114009.
Abstract: The electrical transport properties of (Li,Fe)OHFeSe films have been investigated in detail. The sharply textured films, prepared by matrix-assisted hydrothermal epitaxy (MHE) on LaAlO3, show a zero-resistance critical temperature T c of ∼42 K, J c values well above 1 MA cm-2 at low temperatures, and a maximum pinning force density F P of ∼100 GN m-3 at 4 K. The activation energy U 0 for thermal depinning of flux lines has been resolved for low magnetic fields, it agrees well with literature data. The coherence lengths and penetration depth were estimated via upper critical field B c2 and self-field J c, respectively, to be ξ ab ∼ 2.7 nm, ξ c = 0.24 nm, and λ ab ∼ 160-200 nm. The layered crystal structure leads to highly anisotropic and two-dimensional electrical properties, including trapping and lock-in of vortices. © 2020 The Author(s). Published by IOP Publishing Ltd.
Keywords: (LI, FE)OHFESE
ACTIVATION ENERGY
ANISOTROPY
FE-BASED SUPERCONDUCTORS
PINNING
THIN FILMS
ACTIVATION ENERGY
ANISOTROPY
CRYSTAL STRUCTURE
FLUX PINNING
SUPERCONDUCTING FILMS
TEXTURES
CRITICAL TEMPERATURES
ELECTRICAL TRANSPORT PROPERTIES
HYDROTHERMAL EPITAXY
LAYERED CRYSTAL STRUCTURE
LOW MAGNETIC FIELDS
PINNING FORCE DENSITY
PINNING PROPERTIES
UPPER CRITICAL FIELDS
THIN FILMS
URI: http://hdl.handle.net/10995/102646
Access: info:eu-repo/semantics/openAccess
SCOPUS ID: 85094315060
PURE ID: 20131007
2321c857-77c6-485c-a7b0-1e8d1f38e139
ISSN: 9532048
DOI: 10.1088/1361-6668/abb118
metadata.dc.description.sponsorship: Original content from this work may be used under the terms of the . Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. National Key Research and Development Program of China 2017YFA0303003 2016YFA0300300 Strategic Priority Research Program and Key Research Program of Frontier Sciences of the Chi-nese Academy of Sciences QYZDY-SSW-SLH001 XDB25000000 state assignment of Minobrnauki of Russia Act 211 Government of the Russian Federation 02.A03.21.0006 National Natural Science Foundation of China 11888101 11834016.
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