Investigation of structure and properties of hightemperature superconductors LаFeAsO(1 – х)Fх by means of the Mössbauer effect

Investigation of structure and properties of hightemperature superconductors LаFeAsO(1 – х)Fх by means of the Mössbauer effect

The results of investigation of iron-containing superconductors LаFeAsO(1 – х)Fх (х = 0,11…0,15) are presented, based on joint analysis of Mössbauer spectroscopy, XRD, magnetic and electrophysical methods. A full suppression of magnetic order in these samples with the appearance of the Kondo effect...

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Main Authors: Vladimir A. Lomonosov, Alexander L. Kholmetskii, Leonid V. Makhnach, Aleksey V. Alduchenkov, Oleg V. Gerashchenko, Igor S. Okunev, Miroslav Mashlan, Tolga Yarman
Format: Article
Language:Belarusian
Published: Belarusian State University 2018-04-01
Series:Журнал Белорусского государственного университета: Химия
Subjects:
iron-containing superconductors
mössbauer spectroscopy
high-temperature kondo effect
magnetic and electrophysical property
Online Access:https://journals.bsu.by/index.php/chemistry/article/view/1220
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spelling doaj-977d171756034d86a213e7c59dc9c1302021-04-14T12:50:33ZbelBelarusian State UniversityЖурнал Белорусского государственного университета: Химия2520-257X2617-39802018-04-01143531220Investigation of structure and properties of hightemperature superconductors LаFeAsO(1 – х)Fх by means of the Mössbauer effectVladimir A. Lomonosov0Alexander L. Kholmetskii1Leonid V. Makhnach2Aleksey V. Alduchenkov3Oleg V. Gerashchenko4Igor S. Okunev5Miroslav Mashlan6Tolga Yarman7Belarusian State University, Niezaliežnasci Avenue, 4, 220030, Minsk, BelarusBelarusian State University, Niezaliežnasci Avenue, 4, 220030, Minsk, BelarusBelarusian State University, Niezaliežnasci Avenue, 4, 220030, Minsk, BelarusNational Research Center «Kurchatov Institute», 1 Academician Kurchatov Square, Moscow 123098, RussiaNational Research Center «Kurchatov Institute», 1 Academician Kurchatov Square, Moscow 123098, RussiaNational Research Center «Kurchatov Institute», 1 Academician Kurchatov Square, Moscow 123098, RussiaPalacky University, 511/8 Križkovského, Olomouc 77141, Czech RepublicTepeören Mahallesi, Okan Üniversitesi Tuzla Kampüsü, Akfirat – Tuzla 34959, Tuzla, Istanbul, TurkeyThe results of investigation of iron-containing superconductors LаFeAsO(1 – х)Fх (х = 0,11…0,15) are presented, based on joint analysis of Mössbauer spectroscopy, XRD, magnetic and electrophysical methods. A full suppression of magnetic order in these samples with the appearance of the Kondo effect is shown at x = 0.15 and T < 40 K, as well as the transformation of Kondo effect into high-temperature superconductivity at х = 0.11…0.14 and T < 25 K. The revealed effects allow assuming a significant contribution of interaction between magnetic moments of conducting electrons and impurities in the Cooper pair formation for iron-containing superconductors.https://journals.bsu.by/index.php/chemistry/article/view/1220iron-containing superconductorsmössbauer spectroscopyhigh-temperature kondo effectmagnetic and electrophysical property
collection DOAJ
language Belarusian
format Article
sources DOAJ
author Vladimir A. Lomonosov
Alexander L. Kholmetskii
Leonid V. Makhnach
Aleksey V. Alduchenkov
Oleg V. Gerashchenko
Igor S. Okunev
Miroslav Mashlan
Tolga Yarman
spellingShingle Vladimir A. Lomonosov
Alexander L. Kholmetskii
Leonid V. Makhnach
Aleksey V. Alduchenkov
Oleg V. Gerashchenko
Igor S. Okunev
Miroslav Mashlan
Tolga Yarman
Investigation of structure and properties of hightemperature superconductors LаFeAsO(1 – х)Fх by means of the Mössbauer effect
Журнал Белорусского государственного университета: Химия
iron-containing superconductors
mössbauer spectroscopy
high-temperature kondo effect
magnetic and electrophysical property
author_facet Vladimir A. Lomonosov
Alexander L. Kholmetskii
Leonid V. Makhnach
Aleksey V. Alduchenkov
Oleg V. Gerashchenko
Igor S. Okunev
Miroslav Mashlan
Tolga Yarman
author_sort Vladimir A. Lomonosov
title Investigation of structure and properties of hightemperature superconductors LаFeAsO(1 – х)Fх by means of the Mössbauer effect
title_short Investigation of structure and properties of hightemperature superconductors LаFeAsO(1 – х)Fх by means of the Mössbauer effect
title_full Investigation of structure and properties of hightemperature superconductors LаFeAsO(1 – х)Fх by means of the Mössbauer effect
title_fullStr Investigation of structure and properties of hightemperature superconductors LаFeAsO(1 – х)Fх by means of the Mössbauer effect
title_full_unstemmed Investigation of structure and properties of hightemperature superconductors LаFeAsO(1 – х)Fх by means of the Mössbauer effect
title_sort investigation of structure and properties of hightemperature superconductors lаfeaso(1 – х)fх by means of the mössbauer effect
publisher Belarusian State University
series Журнал Белорусского государственного университета: Химия
issn 2520-257X
2617-3980
publishDate 2018-04-01
description The results of investigation of iron-containing superconductors LаFeAsO(1 – х)Fх (х = 0,11…0,15) are presented, based on joint analysis of Mössbauer spectroscopy, XRD, magnetic and electrophysical methods. A full suppression of magnetic order in these samples with the appearance of the Kondo effect is shown at x = 0.15 and T < 40 K, as well as the transformation of Kondo effect into high-temperature superconductivity at х = 0.11…0.14 and T < 25 K. The revealed effects allow assuming a significant contribution of interaction between magnetic moments of conducting electrons and impurities in the Cooper pair formation for iron-containing superconductors.
topic iron-containing superconductors
mössbauer spectroscopy
high-temperature kondo effect
magnetic and electrophysical property
url https://journals.bsu.by/index.php/chemistry/article/view/1220
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