Strain and oxygenation effects on superconductivity of La1.85Sr0.15CuO4 thin films

被引：56

作者：

Si, WD ^{[1
]}

Li, HC

Xi, XX

机构：

[1] Penn State Univ, Dept Phys, University Pk, PA 16802 USA

[2] Chinese Acad Sci, Inst Phys, Natl Lab Semicond, Beijing 100080, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 1999年 / 74卷 / 19期

关键词：

D O I：

10.1063/1.124031

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have measured normal-state and superconducting properties of La1.85Sr0.15CuO4 thin films as a function of lattice strain and oxygen content. Strain was controlled by depositing SrLaAlO4 buffer layers of different thickness on SrTiO3 substrates, and an ozone/molecular oxygen mixture was used during cooling to achieve better oxygen uptake. We found that both full oxygenation and compressive in-plane strain are critical for the properties of the La1.85Sr0.15CuO4 thin films, and they are closely correlated. (C) 1999 American Institute of Physics. [S0003-6951(99)03519-6].

引用

收藏

页码：2839 / 2841

页数：3

相关论文

共 11 条

[1] Growth, microstructure, and electrochemical oxidation of MBE-grown c-axis La2CuO4 thin films [J].

Arrouy, F ;

Locquet, JP ;

Williams, EJ ;

Machler, E ;

Berger, R ;

Gerber, C ;

Monroux, C ;

Grenier, JC ;

Wattiaux, A .

PHYSICAL REVIEW B, 1996, 54 (10) :7512-7520

[2] Combination of EBSP measurements and SIMS to study crystallographic orientation dependence of diffusivities in a polycrystalline material: Oxygen tracer diffusion in La2-xSrxCuO4+/-delta [J].

Claus, J ;

Borchardt, G ;

Weber, S ;

Hiver, JM ;

Scherrer, S .

MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY, 1996, 38 (03) :251-257

[3] 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

[4] Magnetic, transport, and optical properties of monolayer copper oxides [J].

Kastner, MA ;

Birgeneau, RJ ;

Shirane, G ;

Endoh, Y .

REVIEWS OF MODERN PHYSICS, 1998, 70 (03) :897-928

[5] SINGLE DOMAIN HIGH-TC LA2-XSRXCUO4 FILMS WITH TILTED CUO2 PLANES [J].

KWO, J ;

FLEMING, RM ;

KAO, HL ;

WERDER, DJ ;

CHEN, CH .

APPLIED PHYSICS LETTERS, 1992, 60 (15) :1905-1907

[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] Development of oxidation sources in preparation of high-T-c oxide superconductor thin films using the molecular beam epitaxy method [J].

Nonaka, H ;

Ichimura, S ;

Shimizu, T ;

Arai, K .

CRITICAL REVIEWS IN SOLID STATE AND MATERIALS SCIENCES, 1995, 20 (04) :285-338

[8] OXYGEN TRACER DIFFUSION IN LA2-XSRXCUO4-Y SINGLE-CRYSTALS [J].

OPILA, EJ ;

TULLER, HL ;

WUENSCH, BJ ;

MAIER, J .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1993, 76 (09) :2363-2369

[9] Critical temperature enhancement by means of substrate-induced pressure [J].

Perret, J ;

Fompeyrine, J ;

Seo, JW ;

Mächler, E ;

Fischer, O ;

Martinoli, P ;

Locquet, JP .

SUPERCONDUCTING AND RELATED OXIDES: PHYSICS AND NANOENGINEERING III, 1998, 3481 :310-316

[10] Growth of (001)La1.85Sr0.15CuO4 ultrathin films without buffer or cap layers [J].

Sato, H ;

Yamamoto, H ;

Naito, M .

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 1997, 274 (3-4) :227-231