DOI: 10.1063/1.101562. Microstructure of i n s i t u epitaxially grown superconducting Y-Ba-Cu-O thin films

Microstructure of i n s i t u epitaxially grown superconducting Y-Ba-Cu-O thin films

10.1063/1.101562

Crossref journal-article

AIP Publishing

Applied Physics Letters (317)

Abstract

The microstructure of in situ epitaxially grown Y-Ba-Cu-O thin films on (001) SrTiO3 substrates was studied using cross-sectional transmission electron microscopy. The films, prepared by pulsed laser deposition at substrate holder temperature of 650 °C without post-annealing, exhibit zero resistivity above 90 K and critical currents exceeding 106 A/cm2 at 77 K. The films are of heavily faulted single crystalline structure with the c axis approximately perpendicular to the substrate (001) surface. We suggest that, due to the fast quenching and low substrate temperature, crystalline defects and chemical fluctuations are locked into a faulted structure after each laser pulse. Despite their rather imperfect microstructure, the films are free from macroscopic grain boundaries and secondary phases and possess superb superconducting properties.

Bibliography

Hwang, D. M., Venkatesan, T., Chang, C. C., Nazar, L., Wu, X. D., Inam, A., & Hegde, M. S. (1989). Microstructure of i nâs i t u epitaxially grown superconducting Y-Ba-Cu-O thin films. Applied Physics Letters, 54(17), 1702â1704.

Authors 7

D. M. Hwang (first)
T. Venkatesan (additional)
C. C. Chang (additional)
L. Nazar (additional)
X. D. Wu (additional)
A. Inam (additional)
M. S. Hegde (additional)

References 15 Referenced 74

10.1063/1.98513 / Appl. Phys. Lett. (1987)
10.1063/1.100155 / Appl. Phys. Lett. (1988)
{'key': '2024020223343751500_r3'}
10.1143/JJAP.27.L91 / Jpn. J. Appl. Phys. (1988)
{'key': '2024020223343751500_r5'}
10.1063/1.99730 / Appl. Phys. Lett. (1988)
{'key': '2024020223343751500_r7'}
{'key': '2024020223343751500_r8', 'volume': '65', 'year': '1989', 'journal-title': 'J. Appl. Phys.'} / J. Appl. Phys. (1989)
10.1063/1.100458 / Appl. Phys. Lett. (1988)
10.1063/1.101463 / Appl. Phys. Lett. (1989)
{'key': '2024020223343751500_r11'}
10.1063/1.340136 / J. Appl. Phys. (1988)
10.1063/1.100622 / Appl. Phys. Lett. (1988)
10.1063/1.100588 / Appl. Phys. Lett. (1988)
{'key': '2024020223343751500_r15'}

Dates

Type	When
Created	23 years, 1 month ago (July 26, 2002, 8:51 a.m.)
Deposited	1 year, 7 months ago (Feb. 2, 2024, 6:37 p.m.)
Indexed	2 months, 1 week ago (June 24, 2025, 12:29 p.m.)
Issued	36 years, 4 months ago (April 24, 1989)
Published	36 years, 4 months ago (April 24, 1989)
Published Print	36 years, 4 months ago (April 24, 1989)

Funders 0

None

BibTeX

@article{Hwang_1989, title={Microstructure of i n s i t u epitaxially grown superconducting Y-Ba-Cu-O thin films}, volume={54}, ISSN={1077-3118}, url={http://dx.doi.org/10.1063/1.101562}, DOI={10.1063/1.101562}, number={17}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Hwang, D. M. and Venkatesan, T. and Chang, C. C. and Nazar, L. and Wu, X. D. and Inam, A. and Hegde, M. S.}, year={1989}, month=apr, pages={1702–1704} }

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