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Scanning hall-probe microscopy of a vortex and field fluctuations in La1.85Sr0.15CuO4 films

Publication ,  Journal Article
Chang, AM; Hallen, HD; Hess, HF; Kao, HL; Kwo, J; Sudbø, A; Chang, TY
Published in: Epl
December 1, 1992
Published version (DOI)

A high-resolution scanning Hall-probe microscope is used to spatially resolve vortices in high-temperature superconducting La1.85Sr0.15CuO4 films. At low magnetic fields, a disordered vortex arrangement is observed. A fit to the surface field of an individual vortex is consistent with one flux quantum, and is used to determine the local penetration depth and its temperature dependence. At higher fields, magnetic fluctuations are observed and compared to a collective pinning model. For films grown with the c-axis tilted from the surface normal, oval vortices are observed. © 1992 IOP Publishing Ltd.

Duke Scholars

Albert M. Chang
Author Albert M. Chang Physics

Published In

Epl

DOI

10.1209/0295-5075/20/7/012

EISSN

1286-4854

ISSN

0295-5075

Publication Date

December 1, 1992

Volume

20

Issue

7

Start / End Page

645 / 650

Related Subject Headings

  • Fluids & Plasmas
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 02 Physical Sciences
  • 01 Mathematical Sciences
 

Citation

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ICMJE
MLA
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Chang, A. M., Hallen, H. D., Hess, H. F., Kao, H. L., Kwo, J., Sudbø, A., & Chang, T. Y. (1992). Scanning hall-probe microscopy of a vortex and field fluctuations in La1.85Sr0.15CuO4 films. Epl, 20(7), 645–650. https://doi.org/10.1209/0295-5075/20/7/012
Chang, A. M., H. D. Hallen, H. F. Hess, H. L. Kao, J. Kwo, A. Sudbø, and T. Y. Chang. “Scanning hall-probe microscopy of a vortex and field fluctuations in La1.85Sr0.15CuO4 films.” Epl 20, no. 7 (December 1, 1992): 645–50. https://doi.org/10.1209/0295-5075/20/7/012.
Chang AM, Hallen HD, Hess HF, Kao HL, Kwo J, Sudbø A, et al. Scanning hall-probe microscopy of a vortex and field fluctuations in La1.85Sr0.15CuO4 films. Epl. 1992 Dec 1;20(7):645–50.
Chang, A. M., et al. “Scanning hall-probe microscopy of a vortex and field fluctuations in La1.85Sr0.15CuO4 films.” Epl, vol. 20, no. 7, Dec. 1992, pp. 645–50. Scopus, doi:10.1209/0295-5075/20/7/012.
Chang AM, Hallen HD, Hess HF, Kao HL, Kwo J, Sudbø A, Chang TY. Scanning hall-probe microscopy of a vortex and field fluctuations in La1.85Sr0.15CuO4 films. Epl. 1992 Dec 1;20(7):645–650.
Journal cover image

Published In

Epl

DOI

10.1209/0295-5075/20/7/012

EISSN

1286-4854

ISSN

0295-5075

Publication Date

December 1, 1992

Volume

20

Issue

7

Start / End Page

645 / 650

Related Subject Headings

  • Fluids & Plasmas
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 02 Physical Sciences
  • 01 Mathematical Sciences