Conventional and unconventional impurity effects in superconductors
A survey is done on the effects of impurities in different types of superconductors, both conventional and unconventional, on their electronic spectra and physical properties. These effects can be generally divided on the base of validity (or not) for them of the known Anderson theorem, which is det...
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| Published in: | Физика низких температур |
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| Date: | 2018 |
| Main Authors: | , |
| Format: | Article |
| Language: | English |
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Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2018
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| Online Access: | https://nasplib.isofts.kiev.ua/handle/123456789/175762 |
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| Journal Title: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Cite this: | Conventional and unconventional impurity effects in superconductors / Yu.G. Pogorelov, V.M. Loktev // Физика низких температур. — 2018. — Т. 44, № 1. — С. 3-35. — Бібліогр.: 96 назв. — англ. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| _version_ | 1862631745372815360 |
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| author | Pogorelov, Yu.G. Loktev, V.M. |
| author_facet | Pogorelov, Yu.G. Loktev, V.M. |
| citation_txt | Conventional and unconventional impurity effects in superconductors / Yu.G. Pogorelov, V.M. Loktev // Физика низких температур. — 2018. — Т. 44, № 1. — С. 3-35. — Бібліогр.: 96 назв. — англ. |
| collection | DSpace DC |
| container_title | Физика низких температур |
| description | A survey is done on the effects of impurities in different types of superconductors, both conventional and unconventional, on their electronic spectra and physical properties. These effects can be generally divided on the base of validity (or not) for them of the known Anderson theorem, which is determined by the symmetries of the superconducting state vs those of the impurity perturbation. In this regard, the unconventional behavior can be naturally attributed to this theorem’s failure when the impurity effects are generally much stronger and more diverse. Specific forms of such perturbations in different superconducting systems are analyzed and they reveal a variety of possible scenarios for quasiparticle spectra modification, including formation of several superconducting phases, distinguished by the types of specific narrow bands within the main spectrum gap. These phases and transitions between them, including the transition to the normal metal state, present a lot of unconventional features that can be of interest for some practical applications. The concluded observable effects are compared to the available experimental data.
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| first_indexed | 2025-11-30T11:46:30Z |
| format | Article |
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| id | nasplib_isofts_kiev_ua-123456789-175762 |
| institution | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| language | English |
| last_indexed | 2025-11-30T11:46:30Z |
| publishDate | 2018 |
| publisher | Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| record_format | dspace |
| spelling | Pogorelov, Yu.G. Loktev, V.M. 2021-02-02T18:37:31Z 2021-02-02T18:37:31Z 2018 Conventional and unconventional impurity effects in superconductors / Yu.G. Pogorelov, V.M. Loktev // Физика низких температур. — 2018. — Т. 44, № 1. — С. 3-35. — Бібліогр.: 96 назв. — англ. PACS: 74.62.–c, 74.62.Dh, 74.62.En, 74.70.Ad, 74.70.Xa, 74.72.–h https://nasplib.isofts.kiev.ua/handle/123456789/175762 A survey is done on the effects of impurities in different types of superconductors, both conventional and unconventional, on their electronic spectra and physical properties. These effects can be generally divided on the base of validity (or not) for them of the known Anderson theorem, which is determined by the symmetries of the superconducting state vs those of the impurity perturbation. In this regard, the unconventional behavior can be naturally attributed to this theorem’s failure when the impurity effects are generally much stronger and more diverse. Specific forms of such perturbations in different superconducting systems are analyzed and they reveal a variety of possible scenarios for quasiparticle spectra modification, including formation of several superconducting phases, distinguished by the types of specific narrow bands within the main spectrum gap. These phases and transitions between them, including the transition to the normal metal state, present a lot of unconventional features that can be of interest for some practical applications. The concluded observable effects are compared to the available experimental data. We acknowledge the kind assistance by K.Yu. Pogorelov in preparation of this manuscript. V.M.L. thanks the
 Physics and Astronomy Department of National Academy
 of Sciences of Ukraine for supporting these researches
 within the projects No. 0117U00236 and No. 0117U00240. en Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України Физика низких температур Обзор Conventional and unconventional impurity effects in superconductors Article published earlier |
| spellingShingle | Conventional and unconventional impurity effects in superconductors Pogorelov, Yu.G. Loktev, V.M. Обзор |
| title | Conventional and unconventional impurity effects in superconductors |
| title_full | Conventional and unconventional impurity effects in superconductors |
| title_fullStr | Conventional and unconventional impurity effects in superconductors |
| title_full_unstemmed | Conventional and unconventional impurity effects in superconductors |
| title_short | Conventional and unconventional impurity effects in superconductors |
| title_sort | conventional and unconventional impurity effects in superconductors |
| topic | Обзор |
| topic_facet | Обзор |
| url | https://nasplib.isofts.kiev.ua/handle/123456789/175762 |
| work_keys_str_mv | AT pogorelovyug conventionalandunconventionalimpurityeffectsinsuperconductors AT loktevvm conventionalandunconventionalimpurityeffectsinsuperconductors |