Single-crystalline-like La2-xSrxCuO4 thin films and their transport properties

被引:2
作者
Huang, WW
Liu, BT
Wu, F
Jia, SL
Xu, B
Zhao, BR
机构
[1] Inst Phys, Natl Lab Superconduct, Beijing 100080, Peoples R China
[2] Ctr Condensed Matter Phys, Beijing 100080, Peoples R China
关键词
D O I
10.1088/0953-2048/12/8/310
中图分类号
O59 [应用物理学];
学科分类号
摘要
c-axis oriented La2-xSrxCuO4 films have been prepared by the dc magnetron sputtering method. Smooth surface morphology and excellent crystallinity of the films are observed by SEM and TEM, respectively. It was found that the zero resistance temperature T-c0 and the lattice parameter of the films are strongly dependent on Sr content and oxygen partial pressure of the sputtering gas. Increasing the O-2:Ar ratio can remedy the oxygen deficiency and improve the superconductivity of the films.
引用
收藏
页码:529 / 532
页数:4
相关论文
共 15 条
[1]   THICKNESS DEPENDENCE OF LA2-XSRXCUO4 FILMS [J].
CIEPLAK, MZ ;
BERKOWSKI, M ;
GUHA, S ;
CHENG, E ;
VAGELOS, AS ;
RABINOWITZ, DJ ;
WU, B ;
TROFIMOV, IE ;
LINDENFELD, P .
APPLIED PHYSICS LETTERS, 1994, 65 (26) :3383-3385
[2]  
HAZEN RM, 1990, PHYSICAL PROPERTIES, V2, P145
[3]  
IYE Y, 1992, PHYSICAL PROPERTIES, V3, P304
[4]   INSITU GROWTH AND PROPERTIES OF SINGLE-CRYSTALLINE-LIKE LA2-XSRXCUO4 EPITAXIAL-FILMS BY OFF-AXIS SPUTTERING [J].
KAO, HL ;
KWO, J ;
FLEMING, RM ;
HONG, M ;
MANNAERTS, JP .
APPLIED PHYSICS LETTERS, 1991, 59 (21) :2748-2750
[5]   Thermogravimetric analyses of hydrogen doped La2-xSrxCuO4 and effects of hydrogen atoms on superconductivity [J].
Kobayashi, K ;
Yoshida, J .
PHYSICA C, 1997, 275 (1-2) :74-80
[6]   Doubling the critical temperature of La1.9Sr0.1CuO4 using epitaxial strain [J].
Locquet, JP ;
Perret, J ;
Fompeyrine, J ;
Mächler, E ;
Seo, JW ;
Van Tendeloo, G .
NATURE, 1998, 394 (6692) :453-456
[7]   Magnetic-field-induced localization in the normal state of superconducting La2-xSrxCuO4 [J].
Malinowski, A ;
Cieplak, MZ ;
vanSteenbergen, AS ;
Perenboom, JAAJ ;
Karpinska, K ;
Berkowski, M ;
Guha, S ;
Lindenfeld, P .
PHYSICAL REVIEW LETTERS, 1997, 79 (03) :495-498
[8]   Magnetic penetration depth in superconducting La2-xSrxCuO4 films [J].
Paget, KM ;
Guha, S ;
Cieplak, MZ ;
Trofimov, IE ;
Turneaure, SJ ;
Lemberger, TR .
PHYSICAL REVIEW B, 1999, 59 (01) :641-646
[9]   Superconducting thin films of La2CuO4+delta by oxygen doping using ozone [J].
Sato, H ;
Naito, M ;
Yamamoto, H .
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 1997, 280 (03) :178-186
[10]   Increase in the superconducting transition temperature by anisotropic strain effect in (001)La1.85Sr0.15CuO4 thin films on LaSrAlO4 substrates [J].
Sato, H ;
Naito, M .
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 1997, 274 (3-4) :221-226