Hot STM of nanostructure dynamics on SrTiO3(001)

被引：18

作者：

Marsh, H. L. ^{[1
]}

Deak, D. S. ^{[1
]}

Silly, F. ^{[1
]}

Kirkland, A. I. ^{[1
]}

Castell, M. R. ^{[1
]}

机构：

[1] Univ Oxford, Dept Mat, Oxford OX1 3PH, England

来源：

NANOTECHNOLOGY | 2006年 / 17卷 / 14期

关键词：

D O I：

10.1088/0957-4484/17/14/031

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The dynamics of nanostructured surface phases on SrTiO3( 001) have been analysed using in situ scanning tunnelling microscopy (STM) above 800 degrees C. During high-temperature annealing, the formation, growth and ordering of the nanostructures has been observed. Dilines, with a width of similar to 1 nm, are formed from a TiO2-rich intermediary at 800 degrees C. STM during annealing at 825 degrees C has enabled us to follow both the growth and dissolution of dilines. Following extended annealing, trilines with a width of similar to 2 nm and ordered two-dimensional (2D) nano-arrays form from the diline domains. Our observations of diline dissolution implies random nucleation and growth, followed by rearrangement at elevated temperature to form domains.

引用

页码：3543 / 3548

页数：6

共 15 条

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