ATOMIC RESOLUTION AND NANOSTRUCTURE OF YBA2CU3O7-DELTA LASER-ABLATED THIN-FILMS STUDIES BY SCANNING TUNNELING MICROSCOPY (STM)

被引：50
作者：
LANG, HP
FREY, T
GUNTHERODT, HJ
机构：
[1] Institut für Physik, Universität Basel, Basel, CH-4056
来源：
EUROPHYSICS LETTERS | 1991年 / 15卷 / 06期
关键词：
PEROVSKITE PHASE SUPERCONDUCTORS; ELECTRON MICROSCOPY DETERMINATIONS (INC SCANNING TUNNELING MICROSCOPY METHODS); THIN FILM; GROWTH; STRUCTURE; AND EPITAXY;
D O I：
10.1209/0295-5075/15/6/018
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Scanning tunnelling microscopy (STM) is applied to investigate the surface structure of high-quality c-axis oriented laser-ablated thin YBa2Cu3O7-delta-films. The main features of the surface are steps of one-unit cell height documenting the two-dimensional growth process of the epitaxial film. For the first time atomic resolution with STM is achieved, indicating a 3.8 angstrom square lattice on YBa2Cu3O7-delta-laser-ablated films, as expected from diffraction techniques. Screw dislocations and holes of different sizes are the most frequently observed types of lattice defects in these films.
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页码：667 / 670
页数：4
相关论文
共 14 条
  • [1] POSSIBLE HIGH-TC SUPERCONDUCTIVITY IN THE BA-LA-CU-O SYSTEM
    BEDNORZ, JG
    MULLER, KA
    [J]. ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER, 1986, 64 (02): : 189 - 193
  • [2] BINNIG G, 1982, HELV PHYS ACTA, V55, P726
  • [3] STRUCTURAL ANOMALIES, OXYGEN ORDERING AND SUPERCONDUCTIVITY IN OXYGEN DEFICIENT BA2YCU3OX
    CAVA, RJ
    HEWAT, AW
    HEWAT, EA
    BATLOGG, B
    MAREZIO, M
    RABE, KM
    KRAJEWSKI, JJ
    PECK, WF
    RUPP, LW
    [J]. PHYSICA C, 1990, 165 (5-6): : 419 - 433
  • [4] PREPARATION OF Y-BA-CU OXIDE SUPERCONDUCTOR THIN-FILMS USING PULSED LASER EVAPORATION FROM HIGH-TC BULK MATERIAL
    DIJKKAMP, D
    VENKATESAN, T
    WU, XD
    SHAHEEN, SA
    JISRAWI, N
    MINLEE, YH
    MCLEAN, WL
    CROFT, M
    [J]. APPLIED PHYSICS LETTERS, 1987, 51 (08) : 619 - 621
  • [5] FREY T, 1991, SCI TECHNOLOGY THIN, V2, P197
  • [6] SCREW DISLOCATIONS IN HIGH-TC FILMS
    GERBER, C
    ANSELMETTI, D
    BEDNORZ, JG
    MANNHART, J
    SCHLOM, DG
    [J]. NATURE, 1991, 350 (6316) : 279 - 280
  • [7] GROWTH-MECHANISM OF SPUTTERED FILMS OF YBA2CU3O7 STUDIED BY SCANNING TUNNELING MICROSCOPY
    HAWLEY, M
    RAISTRICK, ID
    BEERY, JG
    HOULTON, RJ
    [J]. SCIENCE, 1991, 251 (5001) : 1587 - 1589
  • [8] THE ORIGIN OF THE SUPERSTRUCTURE IN BI2SR2CACU2O8+DELTA AS REVEALED BY SCANNING TUNNELING MICROSCOPY
    KIRK, MD
    NOGAMI, J
    BASKI, AA
    MITZI, DB
    KAPITULNIK, A
    GEBALLE, TH
    QUATE, CF
    [J]. SCIENCE, 1988, 242 (4886) : 1673 - 1675
  • [9] ON THE STRUCTURE RESPONSIBLE FOR THE 2 SQUARE-ROOT 2AOX2 SQUARE-ROOT 2AO DIFFRACTION PATTERN IN YBA2CU3O7-DELTA
    KREKELS, T
    SHI, TS
    REYESGASGA, J
    VANTENDELOO, G
    VANLANDUYT, J
    AMELINCKX, S
    [J]. PHYSICA C, 1990, 167 (5-6): : 677 - 690
  • [10] LANG H, IN PRESS
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