Fabrication and physical properties of very thin HgBa2CaCu2O6+δ films

L. Fang, S. L. Yan, A. A. Gapud, T. Aytug, B. W. Kang, Y. Y. Xie, J. Z. Wu, S. C. Tidrow, M. H. Ervins, K. W. Kirchner

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

Epitaxial c-axis-oriented HgBa2CaCu2O6+δ (Hg-1212) films approximately 50-80 nm thick have been grown on (0 0 1) LaAlO3 substrates using a cation-exchange process. These films show smooth surface morphology and high-quality epitaxy. The superconducting transition temperatures are up to 118 K. In zero applied magnetic fields, the critical current densities of these films are typically above 107 A/cm2 at 5 K and remain up to 3.54×105 A/cm2 at 100 K.

Original languageEnglish
Pages (from-to)253-257
Number of pages5
JournalPhysica C: Superconductivity and its Applications
Volume339
Issue number4
DOIs
StatePublished - 2000
Externally publishedYes

Funding

This work was supported in part by AFOSR, NSF, NSF EPSCoR, and DEPSCoR.

FundersFunder number
National Science Foundation
Air Force Office of Scientific Research
Kansas NSF EPSCoR

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