| Original Articles |
|
|
|
|
Growth Mode of Superconducting La2-xSrxCul+yO4 Thin Films on LaAIO3 Substrate |
| QIN Yue-ling1,2;LIU Wei2;DONG Xiao-li1,2;LI Lin1,2;ZHAO Bai-ru1,2 |
| 1National Laboratory for Superconductivity, 2Institute of Physics & Center for Condensed Matter Physics, Chinese Academy of Sciences, Beijing 100080 |
|
| Cite this article: |
|
QIN Yue-ling, LIU Wei, DONG Xiao-li et al 1998 Chin. Phys. Lett. 15 530-532 |
|
|
|
Abstract La2-xSrxCul+yO4(LSCO) thin films sputtered from a Cu-rich target on a LaAIO3 substrate showed a columnar structure. The columnar grains penetrated the full thickness of the film, nucleating at the substrate surface defects. Transmission electron microscopy revealed two kinds of lattice images: one with a lattice spacing of 0.66 nm and the other with a spacing of 0.61 nm. The 0.66 nm spacing denotes a c-axis oriented LSCO film matrix. The 0.61 nm spacing has two categories: one with short white dashes, the phase of which is not yet identified, the other with no additional structure, which could correspond to the c-axis deviated LSCO.
|
| Keywords:
74.76.Bz
68.55.Jk
61.72.Ff
|
|
|
Published: 01 July 1998
|
|
| PACS: |
74.76.Bz
|
|
| |
68.55.Jk
|
|
| |
61.72.Ff
|
(Direct observation of dislocations and other defects (etch pits, decoration, electron microscopy, x-ray topography, etc.))
|
|
|
|
|
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
