A novel relaxation phenomenon occurs in buried SrRuO3 layers in strained (Ca1-xSrx)(Zr1-xRux)O3/SrRuO3/SrTiO3 (001) thin film system. The lightly strained SrRuO3 buried layer is initially clamped by the SrTiO3 substrate. After a heavily strained (Ca1-xSrx)(Zr1-xRux)O3 overlayer is deposited, localized strain relaxation develops in the buried layer. This is manifested by a crosshatch pattern of <100> corrugations on the surface, due to the slip of <110> {110} threading dislocations. The phenomenon can be controlled by tuning the growth kinetics and strain energy of the overlayer.
Published in:
Applied Physics Letters
(Volume:89
,
Issue:
3
)
Date of Publication:
Jul 2006
- Page(s):
-
031905
-
031905-3
- ISSN :
-
0003-6951
- Digital Object Identifier :
-
10.1063/1.2221900
- Product Type:
-
Journals & Magazines
- Date of Current Version :
-
18 June 2009
- Issue Date :
-
Jul 2006