HIGH CRITICAL CURRENT DENSITIES IN YBA2CU3O7-X THIN-FILMS FORMED BY METALORGANIC CHEMICAL VAPOR-DEPOSITION AT 730-DEGREES-C

被引:45
作者
LI, YQ [1 ]
ZHAO, J [1 ]
CHERN, CS [1 ]
HUANG, W [1 ]
KULESHA, GA [1 ]
LU, P [1 ]
GALLOIS, B [1 ]
NORRIS, P [1 ]
KEAR, B [1 ]
COSANDEY, F [1 ]
机构
[1] EMCORE CORP,SOMERSET,NJ 08873
关键词
D O I
10.1063/1.104557
中图分类号
O59 [应用物理学];
学科分类号
摘要
YBa2Cu3O7-x superconducting thin films with a critical current density of 2.3 x 10(6) A/cm2 at 77.7 K and 0 T were prepared by a metalorganic chemical vapor deposition process. The films were formed in situ on LaAlO3 at a substrate temperature of 730-degrees-C in 2 Torr partial pressure of N2O. Resistivity and magnetic susceptibility measurements of the as-deposited films show a sharp superconducting transition temperature of 89 K with a narrow width of less than 1 K. Critical current densities were measured by the dc transport method with a patterned bridge of 120-mu-m x 40-mu-m. Both x-ray diffraction and high-resolution electron microscopy measurements indicate that films grew epitaxially with the c axis perpendicular to the surface of the substrate.
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页码:648 / 650
页数:3
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共 20 条
  • [1] FORMATION OF HIGH-TC SUPERCONDUCTING FILMS BY ORGANOMETALLIC CHEMICAL VAPOR-DEPOSITION
    BERRY, AD
    GASKILL, DK
    HOLM, RT
    CUKAUSKAS, EJ
    KAPLAN, R
    HENRY, RL
    [J]. APPLIED PHYSICS LETTERS, 1988, 52 (20) : 1743 - 1745
  • [2] INSITU GROWTH OF YBA2CU3O7-X HIGH-TC SUPERCONDUCTING THIN-FILMS DIRECTLY ON SAPPHIRE BY PLASMA-ENHANCED METALORGANIC CHEMICAL VAPOR-DEPOSITION
    CHERN, CS
    ZHAO, J
    LI, YQ
    NORRIS, P
    KEAR, B
    GALLOIS, B
    [J]. APPLIED PHYSICS LETTERS, 1990, 57 (07) : 721 - 723
  • [3] CRITICAL CURRENT AS A FUNCTION OF TEMPERATURE IN THIN YBA2CU3O7-DELTA FILMS
    DEVRIES, JWC
    GIJS, MAM
    STOLLMAN, GM
    BALLER, TS
    VANVEEN, GNA
    [J]. JOURNAL OF APPLIED PHYSICS, 1988, 64 (01) : 426 - 429
  • [4] GEERK J, 1989, MATER SCI REP, V4, P195
  • [5] OUT-OF-PLANE CONDUCTIVITY IN SINGLE-CRYSTAL YBA2CU3O7
    HAGEN, SJ
    JING, TW
    WANG, ZZ
    HORVATH, J
    ONG, NP
    [J]. PHYSICAL REVIEW B, 1988, 37 (13): : 7928 - 7931
  • [6] CORRELATION BETWEEN THE INSITU GROWTH-CONDITIONS OF YBCO THIN-FILMS AND THE THERMODYNAMIC STABILITY-CRITERIA
    HAMMOND, RH
    BORMANN, R
    [J]. PHYSICA C, 1989, 162 : 703 - 704
  • [7] MICROWAVE PROPERTIES OF HIGHLY ORIENTED YBA2CU3O7-X THIN-FILMS
    INAM, A
    WU, XD
    NAZAR, L
    HEGDE, MS
    ROGERS, CT
    VENKATESAN, T
    SIMON, RW
    DALY, K
    PADAMSEE, H
    KIRCHGESSNER, J
    MOFFAT, D
    RUBIN, D
    SHU, QS
    KALOKITIS, D
    FATHY, A
    PENDRICK, V
    BROWN, R
    BRYCKI, B
    BELOHOUBEK, E
    DRABECK, L
    GRUNER, G
    HAMMOND, R
    GAMBLE, F
    LAIRSON, BM
    BRAVMAN, JC
    [J]. APPLIED PHYSICS LETTERS, 1990, 56 (12) : 1178 - 1180
  • [8] LOW-TEMPERATURE FORMATION OF MULTILAYERED BI(PB)-SR-CA-CU-O THIN-FILMS BY SUCCESSIVE DEPOSITION USING LASER ABLATION
    KANAI, M
    KAWAI, T
    KAWAI, S
    TABATA, H
    [J]. APPLIED PHYSICS LETTERS, 1989, 54 (18) : 1802 - 1804
  • [9] ROLE OF ATOMIC OXYGEN IN THE LOW-TEMPERATURE GROWTH OF YBA2CU3O7-DELTA THIN-FILMS BY LASER ABLATION DEPOSITION
    KOREN, G
    GUPTA, A
    BASEMAN, RJ
    [J]. APPLIED PHYSICS LETTERS, 1989, 54 (19) : 1920 - 1922
  • [10] Y-BA-CU-O SUPERCONDUCTING FILMS WITH HIGH-JC VALUES BY MOCVD USING BA-ADDITION PRODUCTS
    MATSUNO, S
    UCHIKAWA, F
    YOSHIZAKI, K
    [J]. JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS, 1990, 29 (06): : L947 - L948