Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9812955 | Thin Solid Films | 2005 | 6 Pages |
Abstract
The growth behavior of ultrathin (â¼5 nm) SrRuO3 films prepared by pulsed laser deposition (PLD) on SrTiO3 (001) was investigated particularly as a function of growth temperature mainly using synchrotron X-ray diffraction. At a critical growth temperature (~500 °C), below which no crystallization occurs, an epitaxial SrRuO3 film starts to grow with a broad distribution of single (110) domain along the film growth direction maintaining the epitaxial relationship of SrRuO3[001]/SrTiO3[100] and SrRuO3[â110]SrTiO3[010]. Its in-plane and out-of-plane crystal alignments improve sharply when a higher growth temperature of 600 °C is applied, presumably due to the more thermal energy supplied to the substrate. However, more increase of the growth temperature to 650 °C results in no enhancement of atomic ordering but a rougher surface, suggesting that a careful adjustment in the growth temperature is needed to grow an epitaxially well aligned SrRuO3 film possessing a smooth surface.
Related Topics
Physical Sciences and Engineering
Materials Science
Nanotechnology
Authors
Han Cheol Choe, Tae Soo Kang, Jung Ho Je, Jong Ha Moon, Byung-Teak Lee, Sang Sub Kim,