SUPERCONDUCTING AND EPITAXIAL (TL,PB)SR2CA1-XYXCU2O7 THIN-FILMS BY IN-SITU DEPOSITION

被引:17
作者
MYERS, KE
FACE, DW
KOUNTZ, DJ
NESTLERODE, JP
机构
[1] DuPont Central Research and Development, Wilmington, DE 19880-0304
关键词
D O I
10.1063/1.112303
中图分类号
O59 [应用物理学];
学科分类号
摘要
We report the growth of thin films of (Tl,Pb)Sr2Ca1-xYxCu2O7 with x=0-0.2 by off-axis magnetron sputtering in the presence of thallium oxide vapor. The (Tl,Pb)Sr2Ca1-xYxCu2O7 films are highly c-axis oriented on the pseudocubic (100) surface of LaAlO3 or on (001)NdGaO3. The [100] axes of the films grown on LaAlO3 align to the pseudocubic (100) axes of the substrate while for films on NdGaO3 they are rotated 45-degrees relative to orthorhombic (100) substrate axes. After an in situ heat treatment, undoped (Tl,Pb)Sr2CaCu2O7 films are superconducting at temperatures up to 82 K, compared with 85 K for the bulk material. Yttrium doping on the calcium site increased the transition temperature as expected. The highest transition temperature observed was 86 K for x=0.1 and 93 K for x=0.2.
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页码:490 / 492
页数:3
相关论文
共 23 条
[1]  
ADACHI H, 1990, JPN J APPL PHYS, V30, pL39
[2]   ION-BEAM DEPOSITION OF THIN-FILMS OF FERROELECTRIC LEAD ZIRCONATE TITANATE (PZT) [J].
CASTELLANO, RN ;
FEINSTEIN, LG .
JOURNAL OF APPLIED PHYSICS, 1979, 50 (06) :4406-4411
[3]   IN SITU GROWTH AND PROPERTIES OF EPITAXIAL TlBa2CaCu2O7 and TlBa2(Ca1-xYx)Cu2O7 THIN FILMS [J].
Face, D. W. ;
Nestlerode, J. P. .
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, 1993, 3 (01) :1516-1519
[4]   INSITU GROWTH OF EPITAXIAL TLBA2CACU2O7 THIN-FILMS [J].
FACE, DW ;
NESTLERODE, JP .
APPLIED PHYSICS LETTERS, 1992, 61 (15) :1838-1840
[5]   TL2BA2CACU2O8 FILMS WITH VERY LOW MICROWAVE SURFACE-RESISTANCE UP TO 95 K [J].
HOLSTEIN, WL ;
PARISI, LA ;
WILKER, C ;
FLIPPEN, RB .
APPLIED PHYSICS LETTERS, 1992, 60 (16) :2014-2016
[6]  
HOLSTEIN WL, IN PRESS APPL SUPERC
[7]   MICROSTRUCTURAL AND ELECTRONIC PROPERTIES OF HIGHLY ORIENTED Tl0.5Pb0.5Sr2CaCu2O7 FILMS ON LaAlO3 [J].
Kountz, D. J. ;
Gai, P. L. ;
Wilker, C. ;
Holstein, W. L. ;
Pellicone, F. M. ;
Brainard, R. J. .
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, 1993, 3 (01) :1222-1225
[8]  
KOUNTZ DJ, Patent No. 5260251
[9]   HIGH-TEMPERATURE VAPORIZATION BEHAVIOR OF OXIDES .2. OXIDES OF BE, MG, CA, SR, BA, B, AL, GA, IN, TL, SI, GE, SN, PB, ZN, CD, AND HG [J].
LAMOREAUX, RH ;
HILDENBRAND, DL ;
BREWER, L .
JOURNAL OF PHYSICAL AND CHEMICAL REFERENCE DATA, 1987, 16 (03) :419-443
[10]   HIGH PERFORMANCE SUPERCONDUCTING THIN FILMS ON LARGE AREA SUBSTRATES [J].
Lauder, A. ;
Wilker, C. ;
Kountz, D. J. ;
Holstein, W. L. ;
Face, D. W. .
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, 1993, 3 (01) :1683-1686