Growth of Thick ${\\rm BaZrO}_{3}$ -Doped ${\\rm YBa}_{2}{\\rm Cu}_{3}{\\rm O}_{7-\\delta }$ Films

Author

Wee, Sung Hun ; Goyal, Amit ; Zuev, Yuri L.

Author_Institution

Mater. Sci. & Technol. Div., Oak Ridge Nat. Lab., Oak Ridge, TN, USA

Volume

19

Issue

3

fYear

2009

fDate

6/1/2009 12:00:00 AM

Firstpage

3266

Lastpage

3269

Abstract

High quality, thick YBa₂Cu₃O_7-delta (YBCO) films with splayed, self-assembled BaZrO₃ insulating nanodot columns were epitaxially grown by pulsed laser deposition on short pieces of ion-beam-assisted deposition (IBAD) MgO substrate. Variations in superconducting and microstructural properties were observed for samples grown at different substrate temperatures between 790 and 810^degC. At substrate temperatures between 790 and 800^degC, samples were measured to have large self-field I _c of 670-787 A/cm at 77 K and minimum I _c of 353-392 A/cm for all angles at 65 K, 3 T.

Keywords

barium compounds; critical currents; high-temperature superconductors; ion beam assisted deposition; nanostructured materials; pulsed laser deposition; self-assembly; superconducting epitaxial layers; yttrium compounds; YBa₂Cu₃O_7-delta:BaZrO₃; applied magnetic fields; critical currents; epitaxial growth; ion-beam-assisted deposition; microstructural properties; pulsed laser deposition; self-assembled insulating nanodot columns; superconducting properties; temperature 65 K; temperature 77 K; temperature 790 C to 810 C; thick films; ${rm BaZrO}_{3}$ nanodots; flux-pinning; high critical currents; thick ${rm YBa}_{2}{rm Cu}_{3}{rm O}_{7-delta}$ films;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2009.2019594

Filename

5152932

Growth of Thick -Doped Films

Wee, Sung Hun ; Goyal, Amit ; Zuev, Yuri L.

jour

Growth of Thick ${\\rm BaZrO}_{3}$ -Doped ${\\rm YBa}_{2}{\\rm Cu}_{3}{\\rm O}_{7-\\delta }$ Films