D
David K. Christen
Researcher at Oak Ridge National Laboratory
Publications - 365
Citations - 13086
David K. Christen is an academic researcher from Oak Ridge National Laboratory. The author has contributed to research in topics: Superconductivity & Thin film. The author has an hindex of 52, co-authored 365 publications receiving 12790 citations. Previous affiliations of David K. Christen include University of Tennessee.
Papers
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Book ChapterDOI
The impact of tailored defects on length scales and current conduction in high-T c superconductors
James R Thompson,James R Thompson,David K. Christen,Mariappan Parans Paranthaman,Lia Krusin-Elbaum,A. D. Marwick,L. Civale,R. Wheeler,J. G. Ossandon,P. Lisowski,J. L. Ullmann +10 more
TL;DR: In this paper, the formation and effects of "tailored" defects, having controlled numbers and several different morphologies, in high temperature superconductors are surveyed and illustrated with specific examples.
Journal ArticleDOI
Comparison of YBa/sub 2/Cu/sub 3/O/sub 7-/spl delta// precursors made using TFA-MOD and BaF/sub 2/ ex-situ processes and their post-deposition processing under low pressure conditions
TL;DR: In this article, metal-organic deposition using solution from trifluoroacetates (TFA-MOD) and electron beam co-evaporation using BaF/sub 2/ are regarded as promising candidates for fabricating long-length, uniform, high critical current density (J/sub c/) YBa/sub2/Cu/sub 3/O/sub 7-/spl delta// (YBCO) superconducting films for practical applications.
Journal ArticleDOI
Fabrication, processing and properties of Tl-1223 conductors
Amit Goyal,Mariappan Parans Paranthaman,Q. He,Frederick Alyious List,Eliot D. Specht,David K. Christen,D. M. Kroeger,J. E. Tkacyzk,Pradeep Haldar +8 more
TL;DR: In this article, powder-in-tube (PIT) tapes were fabricated using aerosol generated precursor powders mixed with Tl/sub 2/O/sub 3.
Journal Article
Biaxially textured YBa2Cu3O7-δ conductors on rolling assisted biaxially textured substrates with critical current densities of 2-3 mA/cm2
J. E. Mathis,Amit Goyal,Dominic F. Lee,Fred List,M. Paranthaman,David K. Christen,Eliot D. Specht,D. M. Kroeger,Patrick M Martin +8 more
TL;DR: In this paper, YBa2Cu3O7-δ (YBCO) films with transport critical current densities approaching 3×106 A/cm2 were fabricated using laser ablation of YBCO onto rolling-assisted biaxially textured-substrates (RABiTS) using a combination of thin CeO2 and thick YSZ buffer layers.
Journal ArticleDOI
Current decay from quantum tunneling of vortices in Bi-2212 superconductors
James R Thompson,James R Thompson,J. G. Ossandon,Lia Krusin-Elbaum,K.J. Song,Hyunjeong Kim,David K. Christen,J. L. Ullmann +7 more
TL;DR: In this article, columnar defects in textured Bi2Sr2CaCu2Ox/Ag superconducting tapes and Tl-2212 materials were created by a fission process driven by irradiation with 0.8 GeV protons.