Flux pinning and vortex dynamics in MgB₂ doped with TiO₂ and SiC inclusions
The mixed-state superconducting properties of bulk MgB₂ + 2 at.% TiO₂ and + 8 at.% SiC, prepared by the in situ solid state reaction, have been investigated. The analysis on the mixed-state parameters, such as the upper critical field, the coherence length and the Ginzburg–Landau parameter, proves t...
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| Опубліковано в: : | Физика низких температур |
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| Дата: | 2009 |
| Автори: | , , , , , , , , |
| Формат: | Стаття |
| Мова: | English |
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Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2009
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Flux pinning and vortex dynamics in MgB₂ doped with TiO₂ and SiC inclusions / V.G. Prokhorov, G.G. Kaminsky, V.L. Svetchnikov, J.S. Park, T.W. Eom, Y.P. Lee, V.A. Khokhlov, P. Mikheenko // Физика низких температур. — 2009. — Т. 35, № 6. — С. 560-570. — Бібліогр.: 46 назв. — англ. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| id |
nasplib_isofts_kiev_ua-123456789-117174 |
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Prokhorov, V.G. Kaminsky, G.G. Park, J.S. Eom, T.W. Lee, Y.P. Kang, J.-H. Khokhlov, V.A. Mikheenko, P. Svetchnikov, V.L. 2017-05-20T11:36:06Z 2017-05-20T11:36:06Z 2009 Flux pinning and vortex dynamics in MgB₂ doped with TiO₂ and SiC inclusions / V.G. Prokhorov, G.G. Kaminsky, V.L. Svetchnikov, J.S. Park, T.W. Eom, Y.P. Lee, V.A. Khokhlov, P. Mikheenko // Физика низких температур. — 2009. — Т. 35, № 6. — С. 560-570. — Бібліогр.: 46 назв. — англ. 0132-6414 PACS: 74.70.Ad, 74.25.Qt, 74.25.Sv https://nasplib.isofts.kiev.ua/handle/123456789/117174 The mixed-state superconducting properties of bulk MgB₂ + 2 at.% TiO₂ and + 8 at.% SiC, prepared by the in situ solid state reaction, have been investigated. The analysis on the mixed-state parameters, such as the upper critical field, the coherence length and the Ginzburg–Landau parameter, proves that the MgB₂ + 2 at.% TiO₂ is a high-к type-II superconductor in the dirty limit while the MgB₂ + 8 at.% SiC corresponds to that in the moderately clean limit. It was shown that the anisotropic grain-boundary pinning is realized in the fine-grained doped MgB₂ polycrystals rather than the electron scattering one. The field-cooled temperature dependences of magnetic moment exhibit a transition of the samples to the paramagnetic state at certain applied magnetic fields, which is treated as manifestation of the paramagnetic Meissner effect. The experimental results are discussed on the base of modern theoretical approaches. This work was supported by the KOSEF through the Quantum Photonic Science Research Center, by MEST, and by Research fund of HYU (HYU-2008-000-0000-7783), Korea. V. Svetchnikov is grateful to the financial support by Netherlands Institute for Metal Research. en Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України Физика низких температур Свеpхпpоводимость, в том числе высокотемпеpатуpная Flux pinning and vortex dynamics in MgB₂ doped with TiO₂ and SiC inclusions Article published earlier |
| institution |
Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| title |
Flux pinning and vortex dynamics in MgB₂ doped with TiO₂ and SiC inclusions |
| spellingShingle |
Flux pinning and vortex dynamics in MgB₂ doped with TiO₂ and SiC inclusions Prokhorov, V.G. Kaminsky, G.G. Park, J.S. Eom, T.W. Lee, Y.P. Kang, J.-H. Khokhlov, V.A. Mikheenko, P. Svetchnikov, V.L. Свеpхпpоводимость, в том числе высокотемпеpатуpная |
| title_short |
Flux pinning and vortex dynamics in MgB₂ doped with TiO₂ and SiC inclusions |
| title_full |
Flux pinning and vortex dynamics in MgB₂ doped with TiO₂ and SiC inclusions |
| title_fullStr |
Flux pinning and vortex dynamics in MgB₂ doped with TiO₂ and SiC inclusions |
| title_full_unstemmed |
Flux pinning and vortex dynamics in MgB₂ doped with TiO₂ and SiC inclusions |
| title_sort |
flux pinning and vortex dynamics in mgb₂ doped with tio₂ and sic inclusions |
| author |
Prokhorov, V.G. Kaminsky, G.G. Park, J.S. Eom, T.W. Lee, Y.P. Kang, J.-H. Khokhlov, V.A. Mikheenko, P. Svetchnikov, V.L. |
| author_facet |
Prokhorov, V.G. Kaminsky, G.G. Park, J.S. Eom, T.W. Lee, Y.P. Kang, J.-H. Khokhlov, V.A. Mikheenko, P. Svetchnikov, V.L. |
| topic |
Свеpхпpоводимость, в том числе высокотемпеpатуpная |
| topic_facet |
Свеpхпpоводимость, в том числе высокотемпеpатуpная |
| publishDate |
2009 |
| language |
English |
| container_title |
Физика низких температур |
| publisher |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| format |
Article |
| description |
The mixed-state superconducting properties of bulk MgB₂ + 2 at.% TiO₂ and + 8 at.% SiC, prepared by the in situ solid state reaction, have been investigated. The analysis on the mixed-state parameters, such as the upper critical field, the coherence length and the Ginzburg–Landau parameter, proves that the MgB₂ + 2 at.% TiO₂ is a high-к type-II superconductor in the dirty limit while the MgB₂ + 8 at.% SiC corresponds to that in the moderately clean limit. It was shown that the anisotropic grain-boundary pinning is realized in the fine-grained doped MgB₂ polycrystals rather than the electron scattering one. The field-cooled temperature dependences of magnetic moment exhibit a transition of the samples to the paramagnetic state at certain applied magnetic fields, which is treated as manifestation of the paramagnetic Meissner effect. The experimental results are discussed on the base of modern theoretical approaches.
|
| issn |
0132-6414 |
| url |
https://nasplib.isofts.kiev.ua/handle/123456789/117174 |
| citation_txt |
Flux pinning and vortex dynamics in MgB₂ doped with TiO₂ and SiC inclusions / V.G. Prokhorov, G.G. Kaminsky, V.L. Svetchnikov, J.S. Park, T.W. Eom, Y.P. Lee, V.A. Khokhlov, P. Mikheenko // Физика низких температур. — 2009. — Т. 35, № 6. — С. 560-570. — Бібліогр.: 46 назв. — англ. |
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| first_indexed |
2025-12-07T18:28:31Z |
| last_indexed |
2025-12-07T18:28:31Z |
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