MOCVD of YBCO and Buffer Layers on Textured Ni Alloyed Tapes

Author

Stadel, O. ; Muydinov, R. Yu ; Keune, H. ; Schmidt, J. ; Wahl, G. ; Samoilenkov, S.V. ; Gorbenko, O.Yu. ; Melnikov, O.V. ; Korsakov, I.E. ; Kaul, A.R.

Author_Institution

Tech. Univ. of Braunschweig, Braunschweig

Volume

17

Issue

2

fYear

2007

fDate

6/1/2007 12:00:00 AM

Firstpage

3483

Lastpage

3486

Abstract

A RTR MOCVD was used for the deposition of YBCO and various oxides. A new MOCVD technique enable us to coat the metal tape directly without formation of NiO. At a low oxygen partial pressure the buffer layers were grown on the metal tape with good in plane and out of plane texture. The texture of the MgO buffer layers depend on the surface of the alloyed Ni-tape. YBCO layers exhibit excellent out of plane texture with FWHM(005) = 1.4 - 3.5deg and good in plane texture of FWHM(103) = 5-7deg. On MgO buffered Ni5at%W the inductive measured j_c was 0.3-0.7 MA/cm² at 77 K.

Keywords

MOCVD; alloying; barium compounds; buffer layers; critical current density (superconductivity); high-temperature superconductors; magnesium compounds; nickel alloys; surface texture; yttrium compounds; MgO buffer layer; MgO interface; RTR MOCVD; YBCO layers; YBa₂Cu₃O₇; critical current density; in plane texture; metal tape; out of plane texture; oxygen partial pressure; temperature 77 K; textured Ni alloyed tapes; Buffer layers; Chemical vapor deposition; Conductors; Costs; High temperature superconductors; MOCVD; Nickel alloys; Production; Solvents; Yttrium barium copper oxide; Buffer layers; MOCVD; YBCO; coated conductors; textured metal tapes;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2007.899044

Filename

4278280