A method for determining the specific capacitance value of mesoscopic Josephson junctions

Sheng Shiuan Yeh, Kuan Wen Chen, Tao Hsiang Chung, Dai Yang Wu, Ming Chou Lin, Jyh Yang Wang, I. Lin Ho, Cen-Shawn Wu, Watson Kuo, Chiidong Chen

Research output: Contribution to journalArticle

Abstract

An approach for precise determination of capacitance values and energy level spacing of mesoscopic Josephson junctions is proposed. Quantized levels arising from plasma oscillation manifest themselves in the current peaks in the current-voltage characteristics of a nearby probe Josephson junction. From peak spacing, the specific capacitance of aluminum junctions is determined to be 35 fF/μm2. In addition, magnetic field dependence of quantum states can be described quantitatively by a theory that takes the effect of field induced surface current into account.

Original languageEnglish
Article number232602
JournalApplied Physics Letters
Volume101
Issue number23
DOIs
Publication statusPublished - 2012 Dec 3

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Josephson junctions
capacitance
spacing
plasma oscillations
energy levels
aluminum
probes
electric potential
magnetic fields

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

Cite this

Yeh, S. S., Chen, K. W., Chung, T. H., Wu, D. Y., Lin, M. C., Wang, J. Y., ... Chen, C. (2012). A method for determining the specific capacitance value of mesoscopic Josephson junctions. Applied Physics Letters, 101(23), [232602]. https://doi.org/10.1063/1.4769999
Yeh, Sheng Shiuan ; Chen, Kuan Wen ; Chung, Tao Hsiang ; Wu, Dai Yang ; Lin, Ming Chou ; Wang, Jyh Yang ; Ho, I. Lin ; Wu, Cen-Shawn ; Kuo, Watson ; Chen, Chiidong. / A method for determining the specific capacitance value of mesoscopic Josephson junctions. In: Applied Physics Letters. 2012 ; Vol. 101, No. 23.
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Yeh, SS, Chen, KW, Chung, TH, Wu, DY, Lin, MC, Wang, JY, Ho, IL, Wu, C-S, Kuo, W & Chen, C 2012, 'A method for determining the specific capacitance value of mesoscopic Josephson junctions', Applied Physics Letters, vol. 101, no. 23, 232602. https://doi.org/10.1063/1.4769999

A method for determining the specific capacitance value of mesoscopic Josephson junctions. / Yeh, Sheng Shiuan; Chen, Kuan Wen; Chung, Tao Hsiang; Wu, Dai Yang; Lin, Ming Chou; Wang, Jyh Yang; Ho, I. Lin; Wu, Cen-Shawn; Kuo, Watson; Chen, Chiidong.

In: Applied Physics Letters, Vol. 101, No. 23, 232602, 03.12.2012.

Research output: Contribution to journalArticle

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AU - Wang, Jyh Yang

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