Presentation | 1997/4/23 Some discussions of an interpretation of surface impedance of low-Tc superconductors by three-fluid model. Hiromichi Yoshikawa, Seiichiro Ono, Yoshio Kobayashi, |
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Abstract(in English) | It is shown that a three-fluid model, which was successfully introduced to explain microwave characteristics of high-T_c superconductors phenomenologically, is valid also to explain ones for low-T_c superconductors. In this model, two contributions of a residual normal electron in addition to a super and a normal electron in the conventional two-fluid model and of temperature(T-) dependence of momentum relaxation time τfor both these normal electrons are taken into account. Measured results of T-dependence of the surface resistance R_s for a Nb film with T_c=9.3K agree very well with an R_s curve calculated by the present model. Furthermore an improved two-fluid model, which corresponds to the case of n_ |
Keyword(in Japanese) | (See Japanese page) |
Keyword(in English) | low-T_c superconductors / microwave / surface impedance / conductivity |
Paper # | SCE97-13,MW97-13 |
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Conference Information | |
Committee | SCE |
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Conference Date | 1997/4/23(1days) |
Place (in Japanese) | (See Japanese page) |
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Registration To | Superconductive Electronics (SCE) |
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Language | JPN |
Title (in Japanese) | (See Japanese page) |
Sub Title (in Japanese) | (See Japanese page) |
Title (in English) | Some discussions of an interpretation of surface impedance of low-Tc superconductors by three-fluid model. |
Sub Title (in English) | |
Keyword(1) | low-T_c superconductors |
Keyword(2) | microwave |
Keyword(3) | surface impedance |
Keyword(4) | conductivity |
1st Author's Name | Hiromichi Yoshikawa |
1st Author's Affiliation | Faculty of Engineering, Saitama University() |
2nd Author's Name | Seiichiro Ono |
2nd Author's Affiliation | Faculty of Engineering, Saitama University |
3rd Author's Name | Yoshio Kobayashi |
3rd Author's Affiliation | Faculty of Engineering, Saitama University |
Date | 1997/4/23 |
Paper # | SCE97-13,MW97-13 |
Volume (vol) | vol.97 |
Number (no) | 19 |
Page | pp.pp.- |
#Pages | 6 |
Date of Issue |