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Title: Single Cooper-pair tunneling junctions using high-{Tc} superconducting materials

Abstract

The authors introduce the single electron (Cooper-pair) tunneling junctions using c-axis Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8+d} (Bi-2212) superconducting single crystal whiskers. Focused-ion-beam (FIB) etching patterned the Bi-2212 whiskers. The fabricated small stacked junctions have in-plane area S smaller than <1 {micro}m{sup 2}. The junctions showed the current-voltage (I-V) characteristics with the periodic structure of current peaks. The stacking layered structure of Bi-2212 works as multi-junctions array which decrease the effective capacitance, C{sub {Sigma}} = C{sub 0}/N, where C{sub 0} is the capacitance of junction and N is the layer number of elementary junctions. The period of current peaks of I-V curves corresponds to the charging energy of the single Cooper pair, 2Ec (=e{sup 2}/C{sub {Sigma}}).

Authors:
; ;
Publication Date:
Research Org.:
Tohoku Univ., Sendai (JP)
OSTI Identifier:
20000850
Resource Type:
Journal Article
Journal Name:
IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers)
Additional Journal Information:
Journal Volume: 35; Journal Issue: 5Pt2; Conference: 1999 international magnetics conference (Intermag '99), Kyongju (KR), 05/18/1999--05/21/1999; Other Information: PBD: Sep 1999; Journal ID: ISSN 0018-9464
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 66 PHYSICS; TUNNEL EFFECT; COOPER PAIRS; HIGH-TC SUPERCONDUCTORS; SUPERCONDUCTING JUNCTIONS; BISMUTH OXIDES; STRONTIUM OXIDES; CALCIUM OXIDES; COPPER OXIDES; FABRICATION; MORPHOLOGY; ELECTRICAL PROPERTIES

Citation Formats

Kim, S.J., Latyshev, Yu.I., and Yamashita, T. Single Cooper-pair tunneling junctions using high-{Tc} superconducting materials. United States: N. p., 1999. Web. doi:10.1109/20.800766.
Kim, S.J., Latyshev, Yu.I., & Yamashita, T. Single Cooper-pair tunneling junctions using high-{Tc} superconducting materials. United States. doi:10.1109/20.800766.
Kim, S.J., Latyshev, Yu.I., and Yamashita, T. Wed . "Single Cooper-pair tunneling junctions using high-{Tc} superconducting materials". United States. doi:10.1109/20.800766.
@article{osti_20000850,
title = {Single Cooper-pair tunneling junctions using high-{Tc} superconducting materials},
author = {Kim, S.J. and Latyshev, Yu.I. and Yamashita, T.},
abstractNote = {The authors introduce the single electron (Cooper-pair) tunneling junctions using c-axis Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8+d} (Bi-2212) superconducting single crystal whiskers. Focused-ion-beam (FIB) etching patterned the Bi-2212 whiskers. The fabricated small stacked junctions have in-plane area S smaller than <1 {micro}m{sup 2}. The junctions showed the current-voltage (I-V) characteristics with the periodic structure of current peaks. The stacking layered structure of Bi-2212 works as multi-junctions array which decrease the effective capacitance, C{sub {Sigma}} = C{sub 0}/N, where C{sub 0} is the capacitance of junction and N is the layer number of elementary junctions. The period of current peaks of I-V curves corresponds to the charging energy of the single Cooper pair, 2Ec (=e{sup 2}/C{sub {Sigma}}).},
doi = {10.1109/20.800766},
journal = {IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers)},
issn = {0018-9464},
number = 5Pt2,
volume = 35,
place = {United States},
year = {1999},
month = {9}
}