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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| Date: | 1995 |
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| Main Authors: | , , , |
| Format: | Article |
| Language: | English |
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Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
1995
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| Series: | Физика низких температур |
| Online Access: | https://nasplib.isofts.kiev.ua/handle/123456789/174645 |
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| Journal Title: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Cite this: | 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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nasplib_isofts_kiev_ua-123456789-1746452025-02-23T17:33:38Z EPR studies of Mn-doped YBa₂Cu₃0₇-δ composites Stepanov, A.A. Gaillard, В. Regnier, S. Marfaing, J. 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. 1995 Article 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 en Физика низких температур application/pdf Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| institution |
Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| language |
English |
| 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. |
| format |
Article |
| author |
Stepanov, A.A. Gaillard, В. Regnier, S. Marfaing, J. |
| spellingShingle |
Stepanov, A.A. Gaillard, В. Regnier, S. Marfaing, J. EPR studies of Mn-doped YBa₂Cu₃0₇-δ composites Физика низких температур |
| author_facet |
Stepanov, A.A. Gaillard, В. Regnier, S. Marfaing, J. |
| author_sort |
Stepanov, A.A. |
| title |
EPR studies of Mn-doped YBa₂Cu₃0₇-δ composites |
| title_short |
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_sort |
epr studies of mn-doped yba₂cu₃0₇-δ composites |
| publisher |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| publishDate |
1995 |
| url |
https://nasplib.isofts.kiev.ua/handle/123456789/174645 |
| 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. |
| series |
Физика низких температур |
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AT stepanovaa eprstudiesofmndopedyba2cu307dcomposites AT gaillardv eprstudiesofmndopedyba2cu307dcomposites AT regniers eprstudiesofmndopedyba2cu307dcomposites AT marfaingj eprstudiesofmndopedyba2cu307dcomposites |
| first_indexed |
2025-11-24T04:58:58Z |
| last_indexed |
2025-11-24T04:58:58Z |
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1849646475809652736 |