Millimeter-wave study of London penetration depth temperature dependence in Ba(Fe₀.₉₂₆Co₀.₀₇₄)₂As₂ single crystal
In-plane surface Ka-band microwave impedance of optimally doped single crystals of the Fe-based superconductor Ba(Fe₀.₉₂₆Co₀.₀₇₄)₂As₂ (Tc = 22.8 K) was measured. Sensitive sapphire disk quasi-optical resonator with high-Tc cuprate conducting endplates was developed specially for Fe-pnictide supercon...
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| Veröffentlicht in: | Физика низких температур |
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| Datum: | 2011 |
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Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2011
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Zitieren: | Millimeter-wave study of London penetration depth temperature dependence in Ba(Fe₀.₉₂₆Co₀.₀₇₄)₂As₂ single crystal / A.A. Barannik, N.T. Cherpak, N. Ni, M.A. Tanatar, S.A. Vitusevich, V.N. Skresanov, P.C. Canfield, R. Prozorov, V.V. Glamazdin1, K.I. Torokhtii // Физика низких температур. — 2011. — Т. 37, № 8. — С. 912–915. — Бібліогр.: 29 назв. — англ. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| _version_ | 1862635656642035712 |
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| author | Barannik, A.A. Cherpak, N.T. Ni, N. Tanatar, M.A. Vitusevich, S.A. Skresanov, V.N. Canfield, P.C. Prozorov, R. Glamazdin, V.V. Torokhtii, K.I. |
| author_facet | Barannik, A.A. Cherpak, N.T. Ni, N. Tanatar, M.A. Vitusevich, S.A. Skresanov, V.N. Canfield, P.C. Prozorov, R. Glamazdin, V.V. Torokhtii, K.I. |
| citation_txt | Millimeter-wave study of London penetration depth temperature dependence in Ba(Fe₀.₉₂₆Co₀.₀₇₄)₂As₂ single crystal / A.A. Barannik, N.T. Cherpak, N. Ni, M.A. Tanatar, S.A. Vitusevich, V.N. Skresanov, P.C. Canfield, R. Prozorov, V.V. Glamazdin1, K.I. Torokhtii // Физика низких температур. — 2011. — Т. 37, № 8. — С. 912–915. — Бібліогр.: 29 назв. — англ. |
| collection | DSpace DC |
| container_title | Физика низких температур |
| description | In-plane surface Ka-band microwave impedance of optimally doped single crystals of the Fe-based superconductor Ba(Fe₀.₉₂₆Co₀.₀₇₄)₂As₂ (Tc = 22.8 K) was measured. Sensitive sapphire disk quasi-optical resonator with high-Tc cuprate conducting endplates was developed specially for Fe-pnictide superconductors. It allowed finding temperature variation of London penetration depth in a form of power law, namely Δλ(T) ∼ Tn with n = 2.8 from low temperatures up to at least 0.6Tc consisted with radio-frequency measurements. This exponent points towards nodeless state with pairbreaking scattering, which can support one of the extended s-pairing symmetries. The dependence λ(T) at low temperatures is well described by one superconducting small-gap (Δ ≅ 0.75 in kTc units, where k is Boltzman coefficient) exponential dependence.
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| first_indexed | 2025-11-30T18:59:10Z |
| format | Article |
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| id | nasplib_isofts_kiev_ua-123456789-118638 |
| institution | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| issn | 0132-6414 |
| language | English |
| last_indexed | 2025-11-30T18:59:10Z |
| publishDate | 2011 |
| publisher | Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| record_format | dspace |
| spelling | Barannik, A.A. Cherpak, N.T. Ni, N. Tanatar, M.A. Vitusevich, S.A. Skresanov, V.N. Canfield, P.C. Prozorov, R. Glamazdin, V.V. Torokhtii, K.I. 2017-05-30T18:00:56Z 2017-05-30T18:00:56Z 2011 Millimeter-wave study of London penetration depth temperature dependence in Ba(Fe₀.₉₂₆Co₀.₀₇₄)₂As₂ single crystal / A.A. Barannik, N.T. Cherpak, N. Ni, M.A. Tanatar, S.A. Vitusevich, V.N. Skresanov, P.C. Canfield, R. Prozorov, V.V. Glamazdin1, K.I. Torokhtii // Физика низких температур. — 2011. — Т. 37, № 8. — С. 912–915. — Бібліогр.: 29 назв. — англ. 0132-6414 PACS: 07.57.–c, 74.20.Mn, 74.25.nn, 74.70.Xa https://nasplib.isofts.kiev.ua/handle/123456789/118638 In-plane surface Ka-band microwave impedance of optimally doped single crystals of the Fe-based superconductor Ba(Fe₀.₉₂₆Co₀.₀₇₄)₂As₂ (Tc = 22.8 K) was measured. Sensitive sapphire disk quasi-optical resonator with high-Tc cuprate conducting endplates was developed specially for Fe-pnictide superconductors. It allowed finding temperature variation of London penetration depth in a form of power law, namely Δλ(T) ∼ Tn with n = 2.8 from low temperatures up to at least 0.6Tc consisted with radio-frequency measurements. This exponent points towards nodeless state with pairbreaking scattering, which can support one of the extended s-pairing symmetries. The dependence λ(T) at low temperatures is well described by one superconducting small-gap (Δ ≅ 0.75 in kTc units, where k is Boltzman coefficient) exponential dependence. en Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України Физика низких температур Письма pедактоpу Millimeter-wave study of London penetration depth temperature dependence in Ba(Fe₀.₉₂₆Co₀.₀₇₄)₂As₂ single crystal Article published earlier |
| spellingShingle | Millimeter-wave study of London penetration depth temperature dependence in Ba(Fe₀.₉₂₆Co₀.₀₇₄)₂As₂ single crystal Barannik, A.A. Cherpak, N.T. Ni, N. Tanatar, M.A. Vitusevich, S.A. Skresanov, V.N. Canfield, P.C. Prozorov, R. Glamazdin, V.V. Torokhtii, K.I. Письма pедактоpу |
| title | Millimeter-wave study of London penetration depth temperature dependence in Ba(Fe₀.₉₂₆Co₀.₀₇₄)₂As₂ single crystal |
| title_full | Millimeter-wave study of London penetration depth temperature dependence in Ba(Fe₀.₉₂₆Co₀.₀₇₄)₂As₂ single crystal |
| title_fullStr | Millimeter-wave study of London penetration depth temperature dependence in Ba(Fe₀.₉₂₆Co₀.₀₇₄)₂As₂ single crystal |
| title_full_unstemmed | Millimeter-wave study of London penetration depth temperature dependence in Ba(Fe₀.₉₂₆Co₀.₀₇₄)₂As₂ single crystal |
| title_short | Millimeter-wave study of London penetration depth temperature dependence in Ba(Fe₀.₉₂₆Co₀.₀₇₄)₂As₂ single crystal |
| title_sort | millimeter-wave study of london penetration depth temperature dependence in ba(fe₀.₉₂₆co₀.₀₇₄)₂as₂ single crystal |
| topic | Письма pедактоpу |
| topic_facet | Письма pедактоpу |
| url | https://nasplib.isofts.kiev.ua/handle/123456789/118638 |
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