MOLECULAR-BEAM EPITAXIAL-GROWTH OF SUPERCONDUCTING BA2DYCU3O6.5 THIN-FILMS AT 420-DEGREES-C USING NO2 AS AN OXIDANT

被引：15

作者：

NORIMOTO, K ^{[1
]}

SEKINE, R ^{[1
]}

MORI, M ^{[1
]}

HANADA, T ^{[1
]}

KUDO, M ^{[1
]}

KAWAI, M ^{[1
]}

机构：

[1] INST PHYS & CHEM RES,WAKO,SAITAMA 35101,JAPAN

来源：

APPLIED PHYSICS LETTERS | 1992年 / 61卷 / 16期

关键词：

D O I：

10.1063/1.108333

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A superconducting Ba2DyCu3O6.5 (orthorhombic II phase) thin film is formed on a MgO(100) substrate at 420-degrees-C by molecular beam epitaxial growth using NO2 as an oxidant. Metal elements Ba, Dy, and Cu are sequentially supplied from K cells onto MgO(100) at 420-degrees-C under a flow of 5 X 10(-5) Pa of NO2. The film gradually cooled in situ under the identical pressure of NO2 shows metallic behavior in the normal state and a T(c(zero)) of 50 K. The lattice constant of the c axis is observed at 11.75 angstrom, which is known as an orthorhombic II phase of bulk Ba2DyCu3O6.5. Due to the slow deposition rate, the film thus formed is oriented with the c axis perpendicular to the surface in spite of the low-temperature growth condition.

引用

收藏

页码：1971 / 1973

页数：3

相关论文

共 11 条

[1] STRUCTURAL ANOMALIES, OXYGEN ORDERING AND SUPERCONDUCTIVITY IN OXYGEN DEFICIENT BA2YCU3OX [J].

CAVA, RJ ;

HEWAT, AW ;

HEWAT, EA ;

BATLOGG, B ;

MAREZIO, M ;

RABE, KM ;

KRAJEWSKI, JJ ;

PECK, WF ;

RUPP, LW .

PHYSICA C, 1990, 165 (5-6) :419-433

[2]

EOM CB, 1990, SCIENCE, V249, P1552

[3] CORRELATION BETWEEN THE INSITU GROWTH-CONDITIONS OF YBCO THIN-FILMS AND THE THERMODYNAMIC STABILITY-CRITERIA [J].

HAMMOND, RH ;

BORMANN, R .

PHYSICA C, 1989, 162 :703-704

[4] MOLECULAR-BEAM EPITAXY OF DYSPROSIUM BARIUM CUPROUS OXIDES USING MOLECULAR-OXYGEN [J].

HELLMAN, ES ;

HARTFORD, EH ;

FITZGERALD, EA .

JOURNAL OF MATERIALS RESEARCH, 1992, 7 (04) :795-800

[5] ULTRATHIN FILM OF BI2SR2CUOX FORMED BY MOLECULAR-BEAM EPITAXY USING NO2 [J].

KAWAI, M ;

WATANABE, S ;

HANADA, T .

JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A-VACUUM SURFACES AND FILMS, 1990, 8 (06) :4104-4105

[6] MOLECULAR-BEAM EPITAXY OF BI2SR2CUOX AND BI2SR2CA0.85SR0.15CU2OX ULTRA THIN-FILMS AT 300-DEGREES-C [J].

KAWAI, M ;

WATANABE, S ;

HANADA, T .

JOURNAL OF CRYSTAL GROWTH, 1991, 112 (04) :745-752

[7] REACTIVE COEVAPORATION OF YBACUO SUPERCONDUCTING FILMS [J].

MATIJASEVIC, V ;

ROSENTHAL, P ;

SHINOHARA, K ;

MARSHALL, AF ;

HAMMOND, RH ;

BEASLEY, MR .

JOURNAL OF MATERIALS RESEARCH, 1991, 6 (04) :682-698

[8] ATOMIC LAYER BY ATOMIC LAYER GROWTH OF DYBACUO SUPERCONDUCTING THIN-FILMS BY MOLECULAR-BEAM EPITAXY [J].

SCHUHL, A ;

CABANEL, R ;

LEQUIEN, S ;

GHYSELEN, B ;

TYC, S ;

CREUZET, G ;

SIEJKA, J .

APPLIED PHYSICS LETTERS, 1990, 57 (08) :819-821

[9] REFLECTION HIGH-ENERGY ELECTRON-DIFFRACTION OSCILLATIONS DURING EPITAXIAL-GROWTH OF HIGH-TEMPERATURE SUPERCONDUCTING OXIDES [J].

TERASHIMA, T ;

BANDO, Y ;

IIJIMA, K ;

YAMAMOTO, K ;

HIRATA, K ;

HAYASHI, K ;

KAMIGAKI, K ;

TERAUCHI, H .

PHYSICAL REVIEW LETTERS, 1990, 65 (21) :2684-2687

[10]

TUOMINEN M, 1990, APPL PHYS LETT, V56, P1911