DOI: 10.1063/1.100643. Magnetic flux noise in thin-film rings of YBa2Cu3O7−δ

Magnetic flux noise in thin-film rings of YBa2Cu3O7−δ

10.1063/1.100643

Crossref journal-article

AIP Publishing

Applied Physics Letters (317)

Abstract

The low-frequency magnetic flux noise in thin-film rings of YBa2Cu3O7−δ (YBCO) is measured over the temperature range 1.3–125 K by means of a dc superconducting quantum interference device (SQUID) maintained at liquid-helium temperatures. Below the transition temperature Tc of the YBCO, the spectral density of the noise scales as 1/f, where f is the frequency, and generally increases with increasing temperature. The magnitude of the noise depends strongly on the microstructure of the film, and is lowest for a sample which is predominantly oriented with its c axis perpendicular to the substrate. These results imply that SQUID’s and flux transformers of YBCO must be fabricated from highly oriented films to produce good resolution at low frequencies.

Bibliography

Ferrari, M. J., Johnson, M., Wellstood, F. C., Clarke, J., Rosenthal, P. A., Hammond, R. H., & Beasley, M. R. (1988). Magnetic flux noise in thin-film rings of YBa2Cu3O7âÎ´. Applied Physics Letters, 53(8), 695â697.

Authors 7

M. J. Ferrari (first)
Mark Johnson (additional)
Frederick C. Wellstood (additional)
John Clarke (additional)
P. A. Rosenthal (additional)
R. H. Hammond (additional)
M. R. Beasley (additional)

References 10 Referenced 122

{'key': '2024020222405681800_r1', 'first-page': '36', 'volume': '39', 'year': '1986', 'journal-title': 'Phys. Today'} / Phys. Today (1986)
10.1063/1.98922 / Appl. Phys. Lett. (1987)
10.1143/JJAP.26.1923 / Jpn. J. Appl. Phys. (1987)
10.1063/1.99303 / Appl. Phys. Lett. (1988)
10.1103/PhysRevLett.60.1653 / Phys. Rev. Lett. (1988)
{'key': '2024020222405681800_r6'}
10.1557/JMR.1987.0713 / J. Mater. Res. (1987)
10.1007/BF00655097 / J. Low Temp. Phys. (1977)
10.1007/BF00683423 / J. Low Temp. Phys. (1983)
{'key': '2024020222405681800_r10', 'first-page': '359', 'volume': '16', 'year': '1950', 'journal-title': 'Physics'} / Physics (1950)

Dates

Type	When
Created	23 years ago (July 26, 2002, 8:51 a.m.)
Deposited	1 year, 6 months ago (Feb. 2, 2024, 6:03 p.m.)
Indexed	2 months, 2 weeks ago (June 6, 2025, 6:06 a.m.)
Issued	37 years ago (Aug. 22, 1988)
Published	37 years ago (Aug. 22, 1988)
Published Print	37 years ago (Aug. 22, 1988)

Funders 0

None

BibTeX

@article{Ferrari_1988, title={Magnetic flux noise in thin-film rings of YBa2Cu3O7−δ}, volume={53}, ISSN={1077-3118}, url={http://dx.doi.org/10.1063/1.100643}, DOI={10.1063/1.100643}, number={8}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Ferrari, M. J. and Johnson, Mark and Wellstood, Frederick C. and Clarke, John and Rosenthal, P. A. and Hammond, R. H. and Beasley, M. R.}, year={1988}, month=aug, pages={695–697} }

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