New materials for superconducting electronics: Epitaxial growth of LaSrGaO4 and PrSrGaO4 dielectric thin films by MOCVD

被引:2
作者
Belot, JA [1 ]
Hinds, BJ [1 ]
Chen, J [1 ]
Wang, YY [1 ]
Dravid, V [1 ]
Marks, TJ [1 ]
机构
[1] NORTHWESTERN UNIV, SCI & TECHNOL CTR SUPERCONDUCT, EVANSTON, IL 60208 USA
关键词
D O I
10.1002/cvde.19970030204
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
There is a critical need for improved dielectric materials as substrates, and as buffer and insulator layers for HTS devices. Here the first in situ MOCVD growth of phase-pure, epitaxially oriented YBCO lattice matched, low dielectric constant perovskites LnSrGaO(4) (Ln = La and Pr) is described. The exclusively c-axis oriented films have an ultimate surface roughness of 3.0 and 1.0 nm for the Pr and La materials, respectively. These films exemplify the requirements which are essential for fabrication of HTS thin-film devices.
引用
收藏
页码:78 / +
页数:1
相关论文
共 41 条
[1]  
BELOT JA, UNPUB
[2]   CANDALO4 PEROVSKITE SUBSTRATE FOR MICROWAVE AND FAR-INFRARED APPLICATIONS OF EPITAXIAL HIGH TC-SUPERCONDUCTING THIN-FILMS [J].
BERKOWSKI, M ;
PAJACZKOWSKA, A ;
GIERLOWSKI, P ;
LEWANDOWSKI, SJ ;
SOBOLEWSKI, R ;
GORSHUNOV, BP ;
KOZLOV, GV ;
LYUDMIRSKY, DB ;
SIROTINSKY, OI ;
SALTYKOV, PA ;
SOLTNER, H ;
POPPE, U ;
BUCHAL, C ;
LUBIG, A .
APPLIED PHYSICS LETTERS, 1990, 57 (06) :632-634
[3]  
BOZOVIC I, 1994, SPIE P, P2157
[4]   LOW-LOSS SUBSTRATE FOR MICROWAVE APPLICATION OF HIGH-TEMPERATURE SUPERCONDUCTOR FILMS [J].
BROWN, R ;
PENDRICK, V ;
KALOKITIS, D ;
CHAI, BHT .
APPLIED PHYSICS LETTERS, 1990, 57 (13) :1351-1353
[5]   EXTENSION OF THE BI-EPITAXIAL JOSEPHSON JUNCTION PROCESS TO VARIOUS SUBSTRATES [J].
CHAR, K ;
COLCLOUGH, MS ;
LEE, LP ;
ZAHARCHUK, G .
APPLIED PHYSICS LETTERS, 1991, 59 (17) :2177-2179
[6]  
COTTON FA, 1988, ADV INORG CHEM RAD, P956
[7]   SRLAGAO4 - CZOCHRALSKI CRYSTAL-GROWTH AND BASIC PROPERTIES [J].
DABKOWSKI, A ;
DABKOWSKA, HA ;
GREEDAN, JE .
JOURNAL OF CRYSTAL GROWTH, 1993, 132 (1-2) :205-208
[8]   MOCVD OF HIGH-T-C SUPERCONDUCTING MATERIALS [J].
DAHMEN, KH ;
GERFIN, T .
PROGRESS IN CRYSTAL GROWTH AND CHARACTERIZATION OF MATERIALS, 1993, 27 (02) :117-161
[9]   OPTIMAL PEROVSKITE-TYPE SUBSTRATES FOR HIGH-TEMPERATURE SUPERCONDUCTOR LAYERS [J].
EFIMOV, AN ;
LEBEDEV, AO .
JOURNAL OF SUPERCONDUCTIVITY, 1993, 6 (05) :317-320
[10]   CA-SR-GA-NB MIXED-OXIDE SYSTEM FOR HIGH-TEMPERATURE SUPERCONDUCTOR SUBSTRATE APPLICATIONS [J].
ERDEI, S ;
CROSS, LE ;
AINGER, FW ;
BHALLA, A .
JOURNAL OF CRYSTAL GROWTH, 1994, 139 (1-2) :54-66