High rate deposition of 5 μm thick YBa2Cu3O7 films using the BaF2 ex-situ post annealing process

被引:57
作者
Solovyov, VF [1 ]
Wiesmann, HJ
Wu, LJ
Suenaga, M
Feenstra, R
机构
[1] Brookhaven Natl Lab, Dept Appl Sci, Upton, NY 11973 USA
[2] Oak Ridge Natl Lab, Div Solid State, Oak Ridge, TN 37831 USA
关键词
D O I
10.1109/77.784669
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
We have investgated the crystallization of thick YBCO films under various annealing conditions. The films were deposited by high-rate co-evaporation of Y, Cu and BaF2 onto room-temperature SrTiO3 substrates at rates exceeding 10 nm/s. TEM microscopy was performed to establish the microscopic structure of partially processed films and help elucidate the growth mechanism. In-situ resistivity measurements were used to monitor the crystallization of the YBCO films during the annealing process. Resistivity measurements and TEM microscopy of samples at different stages of the film growth are compared. Our results indicate that, in addition to oxygen partial pressure, water vapor pressure is an important parameter which defines the dynamics of film growth and crystallization. 5 mu m thick films with J(c) > 2 x 10(5) A/cm(2) (1 T H parallel to c) have been fabricated.
引用
收藏
页码:1467 / 1470
页数:4
相关论文
共 10 条
[1]   EFFECT OF OXYGEN-PRESSURE ON THE SYNTHESIS OF YBA2CU3O7-X THIN-FILMS BY POSTDEPOSITION ANNEALING [J].
FEENSTRA, R ;
LINDEMER, TB ;
BUDAI, JD ;
GALLOWAY, MD .
JOURNAL OF APPLIED PHYSICS, 1991, 69 (09) :6569-6585
[2]   SCALING LAWS FOR FLUX PINNING IN HARD SUPERCONDUCTORS [J].
KRAMER, EJ .
JOURNAL OF APPLIED PHYSICS, 1973, 44 (03) :1360-1370
[3]   REPRODUCIBLE TECHNIQUE FOR FABRICATION OF THIN-FILMS OF HIGH TRANSITION-TEMPERATURE SUPERCONDUCTORS [J].
MANKIEWICH, PM ;
SCOFIELD, JH ;
SKOCPOL, WJ ;
HOWARD, RE ;
DAYEM, AH ;
GOOD, E .
APPLIED PHYSICS LETTERS, 1987, 51 (21) :1753-1755
[4]   EPITAXIAL NUCLEATION AND GROWTH OF CHEMICALLY DERIVED BA2YCU3O7-X THIN-FILMS ON (001) SRTIO3 [J].
MCINTYRE, PC ;
CIMA, MJ ;
ROSHKO, A .
JOURNAL OF APPLIED PHYSICS, 1995, 77 (10) :5263-5272
[5]   TRANSPORT CRITICAL CURRENTS AND FLUX PINNING MECHANISMS IN SINGLE-CRYSTALLINE THIN-FILMS OF YBA2CU3O7-DELTA [J].
NISHIZAKI, T ;
AOMINE, T ;
FUJII, I ;
YAMAMOTO, K ;
YOSHII, S ;
TERASHIMA, T ;
BANDO, Y .
PHYSICA C, 1991, 181 (4-6) :223-232
[6]   Growth of biaxially textured buffer layers on rolled-Ni substrates by electron beam evaporation [J].
Paranthaman, M ;
Goyal, A ;
List, FA ;
Specht, ED ;
Lee, DF ;
Martin, PM ;
He, Q ;
Christen, DK ;
Norton, DP ;
Budai, JD ;
Kroeger, DM .
PHYSICA C, 1997, 275 (3-4) :266-272
[7]   ab-plane anisotropy of the critical currents in twinned YBa2Cu3O7-delta superconductors [J].
Safar, H ;
Foltyn, S ;
Kung, H ;
Maley, MP ;
Willis, JO ;
Arendt, P ;
Wu, XD .
APPLIED PHYSICS LETTERS, 1996, 68 (13) :1853-1855
[8]  
SOLOVYOV VF, IN PRESS PHYSICA C
[9]  
Suenaga M., 1981, Superconductor Materials Science. Metallurgy, Fabrication, and Applications. Proceedings of a NATO Advanced Study Institute on the Science and Technology of Superconducting Materials, P201
[10]   PROPERTIES OF YBA2CU3O7-DELTA THICK-FILMS ON FLEXIBLE BUFFERED METALLIC SUBSTRATES [J].
WU, XD ;
FOLTYN, SR ;
ARENDT, PN ;
BLUMENTHAL, WR ;
CAMPBELL, IH ;
COTTON, JD ;
COULTER, JY ;
HULTS, WL ;
MALEY, MP ;
SAFAR, HF ;
SMITH, JL .
APPLIED PHYSICS LETTERS, 1995, 67 (16) :2397-2399