Millimeter-wave study of London penetration depth temperature dependence in Ba(Fe₀.₉₂₆Co₀.₀₇₄)₂As₂ single crystal

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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Бібліографічні деталі
Дата:2011
Автори: 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.
Формат: Стаття
Мова:English
Опубліковано: Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України 2011
Назва видання:Физика низких температур
Теми:
Письма pедактоpу
Онлайн доступ:http://dspace.nbuv.gov.ua/handle/123456789/118638
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Назва журналу:Digital Library of Periodicals of National Academy of Sciences of Ukraine
Цитувати: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
id irk-123456789-118638
record_format dspace
spelling irk-123456789-1186382017-05-31T03:08:18Z 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 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. 2011 Article 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 http://dspace.nbuv.gov.ua/handle/123456789/118638 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 Письма pедактоpу
Письма pедактоpу
spellingShingle Письма pедактоpу
Письма pедактоpу
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.
Millimeter-wave study of London penetration depth temperature dependence in Ba(Fe₀.₉₂₆Co₀.₀₇₄)₂As₂ single crystal
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.
format Article
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.
author_sort Barannik, A.A.
title 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_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_sort millimeter-wave study of london penetration depth temperature dependence in ba(fe₀.₉₂₆co₀.₀₇₄)₂as₂ single crystal
publisher Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
publishDate 2011
topic_facet Письма pедактоpу
url http://dspace.nbuv.gov.ua/handle/123456789/118638
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.
series Физика низких температур
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first_indexed 2023-10-18T20:32:41Z
last_indexed 2023-10-18T20:32:41Z
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