Number：

02097005

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Name：

梁元彰

Titles：

Associate professor

Author：

Yuan-chang Liang

Paper name：

Dynamic Scaling of Growing Surfaces in Insulating/Conductive Artificial Superlattices

Name of activity：

2008 Internation Symposium on Nano Science and Technology

Keywords：

Abstract：

The evolution of surface roughness during heteroepitaxial growth of BaTiO3/LaNIO3(BTO/LNO) superlattices on SrTiO3(001)substrates was investigated using in-situ，real-time x-ray reflectivity measurements with synchrotron.The roughness scaling of the growth front of superlattices with modulation length (d) of 2 and 20 nm was stuied against the bilayer The evolution of surface roughness for superlattice with d=2 nm was described by dynamic scaling exponent of β~0.377.On the other hand，that of superlattice with d=20 nm is ~0.234.Observation of such a scaling behavior indicates that the stress plays an important role in the determination of microstructure in superlattices.

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