In:
Japanese Journal of Applied Physics, IOP Publishing, Vol. 36, No. 1R ( 1997-01-01), p. 76-
Abstract:
A -axis YBCO thin films deposited on SrTiO 3 and MgO substrates were prepared using the template-layer method by off-axis magnetron sputtering. The thin films deposited on MgO with template layers displayed better electrical properties and crystallinity than those deposited on the substrates without template layers, whereas the crystallinity of films deposited on SrTiO 3 by the template-layer method showed no improvement. The surface morphology of the films, observed by high-resolution scanning electron microscopy, indicates that the homoepitaxial growth of the a -axis films on template layers on MgO and SrTiO 3 results in rougher surfaces than in the case of heteroepitaxial growth of template layers. The possible mechanisms contributing to these differences in surface roughness were carefully investigated. Atomic force microscopy was also used to characterize the initial growth of a -axis films on MgO and SrTiO 3 . According to the results, the initial growth of a -axis films on MgO and SrTiO 3 resembles that of island growth.
Type of Medium:
Online Resource
ISSN:
0021-4922
,
1347-4065
Language:
Unknown
Publisher:
IOP Publishing
Publication Date:
1997
detail.hit.zdb_id:
218223-3
detail.hit.zdb_id:
797294-5
detail.hit.zdb_id:
2006801-3
detail.hit.zdb_id:
797295-7
