EPR studies of Mn-doped YBa₂Cu₃0₇-δ composites

The preliminary results of EPR experiments on superconducting Mn-YBaCuO composites are reported. The measurements were done in X band in the temperature range 4-300 K. Three distinct EPR components were observed possessing different g-factors and a rather different temperature behavior. For similar...

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Veröffentlicht in:Физика низких температур
Datum:1995
Hauptverfasser: Stepanov, A.A., Gaillard, В., Regnier, S., Marfaing, J.
Format: Artikel
Sprache:Englisch
Veröffentlicht: Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України 1995
Online Zugang:https://nasplib.isofts.kiev.ua/handle/123456789/174645
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Назва журналу:Digital Library of Periodicals of National Academy of Sciences of Ukraine
Zitieren:EPR studies of Mn-doped YBa₂Cu₃0₇-δ composites / A.A. Stepanov, В. Gaillard, S. Regnier, J. Marfaing // Физика низких температур. — 1995. — Т. 21, № 7. — С. 752-756. — Бібліогр.: 10 назв. — англ.

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Digital Library of Periodicals of National Academy of Sciences of Ukraine
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author Stepanov, A.A.
Gaillard, В.
Regnier, S.
Marfaing, J.
author_facet Stepanov, A.A.
Gaillard, В.
Regnier, S.
Marfaing, J.
citation_txt EPR studies of Mn-doped YBa₂Cu₃0₇-δ composites / A.A. Stepanov, В. Gaillard, S. Regnier, J. Marfaing // Физика низких температур. — 1995. — Т. 21, № 7. — С. 752-756. — Бібліогр.: 10 назв. — англ.
collection DSpace DC
container_title Физика низких температур
description The preliminary results of EPR experiments on superconducting Mn-YBaCuO composites are reported. The measurements were done in X band in the temperature range 4-300 K. Three distinct EPR components were observed possessing different g-factors and a rather different temperature behavior. For similar nonsuperconducting samples, only two signals were observed. The nature of the different components is discussed from the comparison of the results. It is shown that, among the superconducting samples, two of them originate from Mn²⁺ paramagnetic centers while the third one presumably comes from Cu²⁺ paramagnetic center. For the nonsuperconducting samples, a magnetic phase transition in an ordered state has been revealed at 25 K. This transition seems to be stimulated by the presence of Mn ions or clusters, probably located in the CuO chains.
first_indexed 2025-11-24T04:58:58Z
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institution Digital Library of Periodicals of National Academy of Sciences of Ukraine
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language English
last_indexed 2025-11-24T04:58:58Z
publishDate 1995
publisher Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
record_format dspace
spelling Stepanov, A.A.
Gaillard, В.
Regnier, S.
Marfaing, J.
2021-01-26T18:55:40Z
2021-01-26T18:55:40Z
1995
EPR studies of Mn-doped YBa₂Cu₃0₇-δ composites / A.A. Stepanov, В. Gaillard, S. Regnier, J. Marfaing // Физика низких температур. — 1995. — Т. 21, № 7. — С. 752-756. — Бібліогр.: 10 назв. — англ.
0132-6414
https://nasplib.isofts.kiev.ua/handle/123456789/174645
538.945
The preliminary results of EPR experiments on superconducting Mn-YBaCuO composites are reported. The measurements were done in X band in the temperature range 4-300 K. Three distinct EPR components were observed possessing different g-factors and a rather different temperature behavior. For similar nonsuperconducting samples, only two signals were observed. The nature of the different components is discussed from the comparison of the results. It is shown that, among the superconducting samples, two of them originate from Mn²⁺ paramagnetic centers while the third one presumably comes from Cu²⁺ paramagnetic center. For the nonsuperconducting samples, a magnetic phase transition in an ordered state has been revealed at 25 K. This transition seems to be stimulated by the presence of Mn ions or clusters, probably located in the CuO chains.
We are grateful to Dr. J. P. Boucher for fruitful and stimulating discussions.
en
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
Физика низких температур
EPR studies of Mn-doped YBa₂Cu₃0₇-δ composites
Article
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spellingShingle EPR studies of Mn-doped YBa₂Cu₃0₇-δ composites
Stepanov, A.A.
Gaillard, В.
Regnier, S.
Marfaing, J.
title EPR studies of Mn-doped YBa₂Cu₃0₇-δ composites
title_full EPR studies of Mn-doped YBa₂Cu₃0₇-δ composites
title_fullStr EPR studies of Mn-doped YBa₂Cu₃0₇-δ composites
title_full_unstemmed EPR studies of Mn-doped YBa₂Cu₃0₇-δ composites
title_short EPR studies of Mn-doped YBa₂Cu₃0₇-δ composites
title_sort epr studies of mn-doped yba₂cu₃0₇-δ composites
url https://nasplib.isofts.kiev.ua/handle/123456789/174645
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AT regniers eprstudiesofmndopedyba2cu307δcomposites
AT marfaingj eprstudiesofmndopedyba2cu307δcomposites