On the determination of the quasiparticle scattering rate in unconventional superconductors by microwave surface impedance
As found from numerous microwave experiments on the unconventional Fe-based superconductors, the temperature dependence of the quasiparticle scattering rate t⁻¹ cannot be accurately described within the framework of standard Drude module in the popular approximation of wt << 1, where w...
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| Published in: | Физика низких температур |
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| Date: | 2013 |
| Main Authors: | , , , , |
| Format: | Article |
| Language: | English |
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Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2013
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| Online Access: | https://nasplib.isofts.kiev.ua/handle/123456789/118928 |
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| Journal Title: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Cite this: | On the determination of the quasiparticle scattering rate in unconventional superconductors by microwave surface impedance / N.T. Cherpak, A.A. Barannik, R. Prozorov, M. Tanatar, A.V. Velichko // Физика низких температур. — 2013. — Т. 39, № 12. — С. 1423–1425. — Бібліогр.: 25 назв. — англ. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| _version_ | 1862568765574610944 |
|---|---|
| author | Cherpak, N.T. Barannik, A.A. Prozorov, R. Tanatar, M. Velichko, A.V. |
| author_facet | Cherpak, N.T. Barannik, A.A. Prozorov, R. Tanatar, M. Velichko, A.V. |
| citation_txt | On the determination of the quasiparticle scattering rate in unconventional superconductors by microwave surface impedance / N.T. Cherpak, A.A. Barannik, R. Prozorov, M. Tanatar, A.V. Velichko // Физика низких температур. — 2013. — Т. 39, № 12. — С. 1423–1425. — Бібліогр.: 25 назв. — англ. |
| collection | DSpace DC |
| container_title | Физика низких температур |
| description | As found from numerous microwave experiments on the unconventional Fe-based superconductors, the temperature dependence of the quasiparticle scattering rate t⁻¹ cannot be accurately described within the framework of standard Drude module in the popular approximation of wt << 1, where w is the signal frequency. To account for the discrepancy, we have extended the classical Drude model for the case of arbitrary values of wt, and obtained the expression for t⁻¹ as a function of experimentally measurable quantities, namely the real and imaginary parts of the microwave surface impedance. We then show the temperature dependence of t⁻¹ in supercon-ducting Ba(Fe₁–xCox)₂As₂ single crystal pnictide derived from the Ka-band surface impedance measurements within the framework of the modified expression. The measurements indicate the extent to which assumption of wt << 1 gives results different from those obtained without this restriction, i.e., incorrect results.
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| first_indexed | 2025-11-26T01:42:46Z |
| format | Article |
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| id | nasplib_isofts_kiev_ua-123456789-118928 |
| institution | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| issn | 0132-6414 |
| language | English |
| last_indexed | 2025-11-26T01:42:46Z |
| publishDate | 2013 |
| publisher | Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| record_format | dspace |
| spelling | Cherpak, N.T. Barannik, A.A. Prozorov, R. Tanatar, M. Velichko, A.V. 2017-06-01T09:54:13Z 2017-06-01T09:54:13Z 2013 On the determination of the quasiparticle scattering rate in unconventional superconductors by microwave surface impedance / N.T. Cherpak, A.A. Barannik, R. Prozorov, M. Tanatar, A.V. Velichko // Физика низких температур. — 2013. — Т. 39, № 12. — С. 1423–1425. — Бібліогр.: 25 назв. — англ. 0132-6414 PACS: 74.25.nn, 74.70.Xa https://nasplib.isofts.kiev.ua/handle/123456789/118928 As found from numerous microwave experiments on the unconventional Fe-based superconductors, the temperature dependence of the quasiparticle scattering rate t⁻¹ cannot be accurately described within the framework of standard Drude module in the popular approximation of wt << 1, where w is the signal frequency. To account for the discrepancy, we have extended the classical Drude model for the case of arbitrary values of wt, and obtained the expression for t⁻¹ as a function of experimentally measurable quantities, namely the real and imaginary parts of the microwave surface impedance. We then show the temperature dependence of t⁻¹ in supercon-ducting Ba(Fe₁–xCox)₂As₂ single crystal pnictide derived from the Ka-band surface impedance measurements within the framework of the modified expression. The measurements indicate the extent to which assumption of wt << 1 gives results different from those obtained without this restriction, i.e., incorrect results. en Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України Физика низких температур Краткие сообщения On the determination of the quasiparticle scattering rate in unconventional superconductors by microwave surface impedance Article published earlier |
| spellingShingle | On the determination of the quasiparticle scattering rate in unconventional superconductors by microwave surface impedance Cherpak, N.T. Barannik, A.A. Prozorov, R. Tanatar, M. Velichko, A.V. Краткие сообщения |
| title | On the determination of the quasiparticle scattering rate in unconventional superconductors by microwave surface impedance |
| title_full | On the determination of the quasiparticle scattering rate in unconventional superconductors by microwave surface impedance |
| title_fullStr | On the determination of the quasiparticle scattering rate in unconventional superconductors by microwave surface impedance |
| title_full_unstemmed | On the determination of the quasiparticle scattering rate in unconventional superconductors by microwave surface impedance |
| title_short | On the determination of the quasiparticle scattering rate in unconventional superconductors by microwave surface impedance |
| title_sort | on the determination of the quasiparticle scattering rate in unconventional superconductors by microwave surface impedance |
| topic | Краткие сообщения |
| topic_facet | Краткие сообщения |
| url | https://nasplib.isofts.kiev.ua/handle/123456789/118928 |
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