Andreev Reflection Enhanced Aharonov-Bohm Oscillation in Conductance of a Mesoscopic Normal Metal Ring Connected to Normal and Superconducting Leads

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概要

• 論文の詳細を見る

• We investigate tl?e conudtrctance throtrgh an Aharonov-Bohtn normal ntaetal ring connected tonortnal attd strpercondtrcting leads. It is shoxvn that, dtre to the Andreev reflection at the nornaalstrperconducting phase l.cotrndary, the condtrct?rnce taaaxitaa;t could be enhanced to be txvice as largeas that for the rirag corauaected with norrraal condtzctizag Jeards. The x'oJtage bias naay sujopress thiscondtuctance enhancenaent, Hoxvever, the periodicity of' the oscillating condtrctance in fltrx is notaltered by the presence of the strpercondtrcting contact. The discttssion is also extended to includethe itnpurity scattering effect and tlae rtatrltichannel cstse. Qtrite interestingly, the period halvingcotrld be indtrced by the iuaaptmrity scatteriuag even in one-diznensional norznal strpercondtzctinghybrid strtzcttzres.

• 社団法人日本物理学会の論文
• 1998-05-15

著者

• Wang Z.

  Department Of Physics University Of Hong Kong

• Wang Z.d.

  Department Of Physics And National Laboratory Of Solid State Microstructure Nanjing University

• Zhu Jian-xin

  Texas Center For Superconfuctivity University Of Houston:department Of Physics University Of Hong Ko

• D WANG

  Department of Physics,University of Hong Kong

• Zhu Jian-xin

  Texas Center For Superconductivity University Of Houston

• ZHU Jian-Xin

  Texas Center for Superconfuctivity,University of Houston:Department of Physics,University of Hong Kong

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