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 is the...
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| Дата: | 2013 |
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| Автори: | , , , , |
| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2013
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| Назва видання: | Физика низких температур |
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| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/118928 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | 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. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| id |
irk-123456789-118928 |
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irk-123456789-1189282017-06-02T03:04:35Z 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 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. 2013 Article 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 http://dspace.nbuv.gov.ua/handle/123456789/118928 en Физика низких температур 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 |
| topic |
Краткие сообщения Краткие сообщения |
| spellingShingle |
Краткие сообщения Краткие сообщения Cherpak, N.T. Barannik, A.A. Prozorov, R. Tanatar, M. Velichko, A.V. On the determination of the quasiparticle scattering rate in unconventional superconductors by microwave surface impedance 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. |
| format |
Article |
| 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. |
| author_sort |
Cherpak, N.T. |
| title |
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_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_sort |
on the determination of the quasiparticle scattering rate in unconventional superconductors by microwave surface impedance |
| publisher |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| publishDate |
2013 |
| topic_facet |
Краткие сообщения |
| url |
http://dspace.nbuv.gov.ua/handle/123456789/118928 |
| 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. |
| series |
Физика низких температур |
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2023-10-18T20:33:20Z |
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