Please use this identifier to cite or link to this item: http://hdl.handle.net/10995/102784
Title: Determination of the lower critical field Hc1(T) in FeSe single crystals by magnetization measurements
Authors: Abdel-Hafiez, M.
Vasiliev, A. N.
Chareev, D. A.
Moshchalkov, V. V.
Silhanek, A. V.
Issue Date: 2014
Publisher: Elsevier
Citation: Determination of the lower critical field Hc1(T) in FeSe single crystals by magnetization measurements / M. Abdel-Hafiez, A. N. Vasiliev, D. A. Chareev, et al. — DOI 10.1016/j.physc.2014.04.018 // Physica C: Superconductivity and its Applications. — 2014. — Vol. 503. — P. 143-145.
Abstract: In a recent work, Abdel-Hafiez et al. [1] we have determined the temperature dependence of the lower critical field Hc1(T) of a FeSe single crystal under static magnetic fields H parallel to the crystallographic c axis. The temperature dependence of the first vortex penetration field has been experimentally obtained by two independent methods and the corresponding Hc1(T) was deduced by taking into account demagnetization factors. In general, the first vortex penetration field may not reflect the true Hc1(T) due to the presence of surface barriers. In this work we show that magnetic hysteresis loops are very symmetric close to the critical temperature Tc = 9 K evidencing the absence of surface barriers and thus validating the previously reported determination of Hc1(T) and the main observations that the superconducting energy gap in FeSe is nodeless. © 2014 Elsevier B.V. All rights reserved.
Keywords: FESE SUPERCONDUCTOR
LOWER CRITICAL FIELD
MAGNETIC PROPERTIES
SINGLE CRYSTAL
MAGNETIC PROPERTIES
SUPERCONDUCTIVITY
TEMPERATURE DISTRIBUTION
VORTEX FLOW
CRITICAL TEMPERATURES
DEMAGNETIZATION FACTORS
FESE SUPERCONDUCTORS
LOWER CRITICAL FIELD
MAGNETIZATION MEASUREMENTS
STATIC MAGNETIC FIELDS
SUPERCONDUCTING ENERGY GAP
TEMPERATURE DEPENDENCE
SINGLE CRYSTALS
URI: http://hdl.handle.net/10995/102784
Access: info:eu-repo/semantics/openAccess
SCOPUS ID: 84904393027
PURE ID: 425122
0b3eb3f3-b5a9-48dc-8ea9-27516e7d8f90
ISSN: 9214534
DOI: 10.1016/j.physc.2014.04.018
Appears in Collections:Научные публикации, проиндексированные в SCOPUS и WoS CC

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