New superconducting Sr2CuO4-δ thin films prepared by molecular beam epitaxy

被引：11
作者：
Karimoto, S [1 ]
Yamamoto, H [1 ]
Greibe, T [1 ]
Naito, M [1 ]
机构：
[1] NTT, Basic Res Labs, Kanagawa 2430198, Japan
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS | 2001年 / 40卷 / 2B期
关键词：
high-T-c superconductor; thin film; Sr2CuO4-delta; Sr2CuO3+delta; molecular beam epitaxy; oxidation; ozone; K2NiF4; 0201; 02(n-1)n; homologous series;
D O I：
10.1143/JJAP.40.L127
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We report the synthesis of new superconducting Sr2CUO4-delta thin films (T-c(onset) similar to 75 K) using molecular beam epitaxy (MBE). This superconductor has a tetragonal structure with an in-plane lattice constant a(o) similar to 3.79 Angstrom and a c-axis lattice constant c(o) similar to 13.55 Angstrom. This c-axis lattice constant is significantly larger than previously reported for this system. Strong oxidation using ozone gas at a low temperature of around 350 degreesC is essential to the realization of phase conversion from the orthorhombic insulating phase (Sr2CuO3) to the tetragonal superconducting phase (Sr2CuO4-delta).
引用
收藏
页码：L127 / L130
页数：4
相关论文
共 20 条
  • [1] NEW SUPERCONDUCTING CUPRATES IN THE SR-CA-CU-O SYSTEM
    ADACHI, S
    YAMAUCHI, H
    TANAKA, S
    MORI, N
    [J]. PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 1993, 212 (1-2): : 164 - 168
  • [2] ATOMICALLY LAYERED HETEROEPITAXIAL GROWTH OF SINGLE-CRYSTAL FILMS OF SUPERCONDUCTING BI2SR2CA2CU3OX
    ECKSTEIN, JN
    BOZOVIC, I
    VONDESSONNECK, KE
    SCHLOM, DG
    HARRIS, JS
    BAUMANN, SM
    [J]. APPLIED PHYSICS LETTERS, 1990, 57 (09) : 931 - 933
  • [3] Epitaxial growth of single-crystalline thin film of Ca14Cu24O41:: A heavily hole-doped two-legged spin ladder
    Furubayashi, Y
    Terashima, T
    Chong, I
    Takano, M
    Yagi, K
    Shima, S
    Terauchi, H
    [J]. PHYSICAL REVIEW B, 1999, 60 (06): : R3720 - R3723
  • [4] HIGH-PRESSURE SYNTHESIS OF THE SR2CUO3+DELTA SUPERCONDUCTOR OBSERVATION OF AN INCREASE IN TC FROM 70-K TO 94-K WITH HEAT-TREATMENT
    HAN, PD
    CHANG, L
    PAYNE, DA
    [J]. PHYSICA C, 1994, 228 (1-2): : 129 - 136
  • [5] A NEW FAMILY OF COPPER-OXIDE SUPERCONDUCTORS SRN+1CUNO2N+1+DELTA STABILIZED AT HIGH-PRESSURE
    HIROI, Z
    TAKANO, M
    AZUMA, M
    TAKEDA, Y
    [J]. NATURE, 1993, 364 (6435) : 315 - 317
  • [6] New superconducting PbSr2CuO5+δ prepared by a novel low-temperature synthetic route using molecular beam epitaxy
    Karimoto, S
    Naito, M
    [J]. JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS, 1999, 38 (3B): : L283 - L285
  • [7] Superconductivity in the series of compounds Sr2Can-1CunOy (n=1 similar to 4) prepared under high pressure
    Kawashima, T
    TakayamaMuromachi, E
    [J]. PHYSICA C, 1996, 267 (1-2): : 106 - 112
  • [8] SYNTHESIS OF SUPERCONDUCTING SR2CUO3+DELTA USING HIGH-PRESSURE TECHNIQUES
    LAFFEZ, P
    WU, XJ
    ADACHI, S
    YAMAUCHI, H
    MORI, N
    [J]. PHYSICA C, 1994, 222 (3-4): : 303 - 309
  • [9] THE SYNTHESIS AND STRUCTURAL CHARACTERIZATION OF SR2CUO4-X,X-APPROXIMATELY-0.1
    LOBO, RC
    BERRY, FJ
    GREAVES, C
    [J]. JOURNAL OF SOLID STATE CHEMISTRY, 1990, 88 (02) : 513 - 519
  • [10] MICHEL C, 1984, REV CHIM MINER, V21, P407
12