Title :
Growth conditions of textured YBCO films on a cylindrically curved surface of a YSZ substrate
Author :
Sangjun Oh ; Doohoon Goo ; JunHo Kim ; Dojun Youm
Author_Institution :
Dept. of Phys., Korea Adv. Inst. of Sci. & Technol., Taejon, South Korea
fDate :
6/1/1997 12:00:00 AM
Abstract :
A cylindrically textured YBCO film was grown on a cylindrical surface of single crystalline YSZ. The substrate shape was a 60/spl deg/ sector of a cylinder. The substrate surface was pretreated by oxygen ion milling followed by deposition of 15 /spl Aring/ thick CeO/sub 2/ buffer layer. It was confirmed by XRD 2 /spl theta/ and /spl phi/-scan that the c-axes were normal to the surfaces and the a and b-axes were aligned in all regions. T/sub c/ was about 85 K.
Keywords :
barium compounds; cerium compounds; crystal structure; high-temperature superconductors; sputter deposition; superconducting thin films; superconducting transition temperature; surface texture; surface treatment; yttrium compounds; /spl phi/-scan; 15 A; 2 /spl theta/ scan; 85 K; CeO/sub 2/; CeO/sub 2/ buffer layer; XRD; Y/sub 2/O/sub 3/ZrO/sub 2/; YBa/sub 2/Cu/sub 3/O/sub 7/; YSZ substrate; a-axes; b-axes; c-axes; cylindrical surface; cylindrically curved surface; cylindrically textured YBCO film; growth conditions; oxygen ion milling; single crystalline YSZ; substrate shape; superconducting T/sub c/; textured YBCO films; Buffer layers; Crystallization; Magnetic films; Physics; Shape; Substrates; Surface texture; Transistors; X-ray scattering; Yttrium barium copper oxide;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
