Characteristics of noises in high-temperature YBCO Josephson junctions

H. E. Horng; S. Y. Yang; J. T. Jeng; J. M. Wu; J. H. Chen; H. C. Yang

doi:10.1109/77.783901

Characteristics of noises in high-temperature YBCO Josephson junctions

H. E. Horng^*, S. Y. Yang, J. T. Jeng, J. M. Wu, J. H. Chen, H. C. Yang

^*Corresponding author for this work

Undergraduate Program of Electro-Optical Engineering

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

In this work, the characteristics of the noises for hightemperature YBCO Josephson junctions and SQUIDs were studied. The noise power spectrum densities showed complicated behaviors, which may be attributed to many causes. In order to realize the contributions of these causes to the noise, the noise power spectra were detected at various bias currents. Thus, the noises owing to the critical current fluctuation, resistance fluctuation or apparent flux motion can be investigated. By comparing these noise power spectra under the different conditions, the origins of the noises for the junctions and SQUIDs can be clarified.

Original language	English
Pages (from-to)	3986-3989
Number of pages	4
Journal	IEEE Transactions on Applied Superconductivity
Volume	9
Issue number	2 PART 3
DOIs	https://doi.org/10.1109/77.783901
Publication status	Published - 1999

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

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10.1109/77.783901

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title = "Characteristics of noises in high-temperature YBCO Josephson junctions",

abstract = "In this work, the characteristics of the noises for hightemperature YBCO Josephson junctions and SQUIDs were studied. The noise power spectrum densities showed complicated behaviors, which may be attributed to many causes. In order to realize the contributions of these causes to the noise, the noise power spectra were detected at various bias currents. Thus, the noises owing to the critical current fluctuation, resistance fluctuation or apparent flux motion can be investigated. By comparing these noise power spectra under the different conditions, the origins of the noises for the junctions and SQUIDs can be clarified.",

author = "Horng, {H. E.} and Yang, {S. Y.} and Jeng, {J. T.} and Wu, {J. M.} and Chen, {J. H.} and Yang, {H. C.}",

note = "Funding Information: This work is supported by the National Science Council of ROC under grand NOS.N SC87-2112-M-003-008, NSC87-2112-M-003-001 and NSC87-2112-M-002-002.",

year = "1999",

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T1 - Characteristics of noises in high-temperature YBCO Josephson junctions

AU - Horng, H. E.

AU - Yang, S. Y.

AU - Jeng, J. T.

AU - Wu, J. M.

AU - Chen, J. H.

AU - Yang, H. C.

N1 - Funding Information: This work is supported by the National Science Council of ROC under grand NOS.N SC87-2112-M-003-008, NSC87-2112-M-003-001 and NSC87-2112-M-002-002.

PY - 1999

Y1 - 1999

N2 - In this work, the characteristics of the noises for hightemperature YBCO Josephson junctions and SQUIDs were studied. The noise power spectrum densities showed complicated behaviors, which may be attributed to many causes. In order to realize the contributions of these causes to the noise, the noise power spectra were detected at various bias currents. Thus, the noises owing to the critical current fluctuation, resistance fluctuation or apparent flux motion can be investigated. By comparing these noise power spectra under the different conditions, the origins of the noises for the junctions and SQUIDs can be clarified.

AB - In this work, the characteristics of the noises for hightemperature YBCO Josephson junctions and SQUIDs were studied. The noise power spectrum densities showed complicated behaviors, which may be attributed to many causes. In order to realize the contributions of these causes to the noise, the noise power spectra were detected at various bias currents. Thus, the noises owing to the critical current fluctuation, resistance fluctuation or apparent flux motion can be investigated. By comparing these noise power spectra under the different conditions, the origins of the noises for the junctions and SQUIDs can be clarified.

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ER -

Characteristics of noises in high-temperature YBCO Josephson junctions

Abstract

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