Electrical Resistivity of Nb–Ti Superconductors

• Takei Hiromi

  Department of Electrical Engineering and Electronics, Toyohashi University of Technology

書誌事項

タイトル別名

• Electrical Resistivity of Nb–Ti Superconductors

抄録

Characteristics of superconductivity in Nb–Ti alloys (Nb-41–55 mass%Ti) are studied through electrical resistivity measurements. The superconducting transition temperature T_c and the electron-phonon resistivity at 273 K, ρ_ep (273 K), are obtained with the measurements. From the experimental values of T_c, the electron-phonon coupling parameter λ is determined as a function of concentration. The density of states at Fermi level N(E_f) is estimated by using the relation between the values of λ obtained here and the coefficient of electronic specific heat γ. The results lead to a conclusion that the increase of T_c is mainly caused by the rise of N(E_f) with concentration. The electron-phonon coupling parameter in electronic transport λ_tr is also determined from the experimental values of ρ_ep (273 K), and compared with λ.

収録刊行物

• Transactions of the Japan Institute of Metals

  Transactions of the Japan Institute of Metals 25 (7), 511-515, 1984

  社団法人 日本金属学会

キーワード

• niobium-titanium alloy
• superconductor
• critical temperature
• electrical resistivity
• electron-phonon coupling

詳細情報

• CRID: 1390001205119021056
• NII論文ID: 130003486156
• DOI: 10.2320/matertrans1960.25.511
• COI: 1:CAS:528:DyaL2MXhvFKitrc%3D
• ISSN: 24324701
• ISSN: 00214434
• Web Site: https://www.jstage.jst.go.jp/article/matertrans1960/25/7/25_7_511/_pdf
• 本文言語コード: en
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