このエントリーをはてなブックマークに追加
ID 18791
本文ファイル
著者
抄録(英)
We have studied the tunneling current of a superconductor-insulator-normal tunnel junction connected to a nonequilibrium superconductor in which nonvanishing charge imbalance is present, by injection experiments using multiterminal devices fabricated with electron beam lithography. We found that the tunneling current could be separated into excess current, due to charge imbalance, and normal current, which showed clear and different dependences on the bias voltage, as expected from the theory of charge imbalance [M. Tinkham, Phys. Rev. B 6, 1747 (1972)]. We also found in the analysis of the normal current that nonequilibrium distributions were created in the normal electrode; they were presumably caused by excitation due to hot electrons that tunneled from the nonequilibrium superconductor.
掲載誌名
Physical Review B - Condensed Matter and Materials Physics
73巻
13号
開始ページ
134507-1
終了ページ
134507-4
出版年月日
2006-04-07
出版者
American Physical Society
ISSN
1098-0121
NCID
出版者DOI
言語
英語
NII資源タイプ
学術雑誌論文
広大資料タイプ
学術雑誌論文
DCMIタイプ
text
フォーマット
application/pdf
著者版フラグ
publisher
権利情報
Copyright (c) 2006 American Physical Society.
関連情報URL
部局名
先端物質科学研究科