Decay of Two-Dimensional Holes on SrTiO3(001)
Decay of Two-Dimensional Holes on SrTiO3(001)
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SrTiO3(001)上二维空穴的衰变
DOI：
10.1380/ejssnt.2006.307
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发表时间：
2006
期刊：
影响因子：
--
通讯作者：
H. Iwasaki
中科院分区：
文献类型：
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作者：
H. Goto;K. Sudoh;H. Iwasaki
我们利用扫描隧道显微镜（STM）研究了 SrTiO3(001) 表面二维空穴的衰变动力学。我们利用STM纳米加工技术在(001)平台上创建了纳米级单位晶胞深孔，并在700 ∼ 800°C的温度范围内实时观察孔的衰变。从衰变过程中观察到的空穴面积的时间依赖性，我们发现衰变的速率限制过程是表面扩散。我们还研究了衬底台阶和岛的存在对空穴衰减的影响。 [DOI：10.1380/ejssnt.2006.307]
We have studied the decay kinetics of two-dimensional holes on SrTiO3(001) surfaces using scanning tunneling microscopy(STM). We have created nanoscale unit-cell-deep holes on (001) terraces using a STM nanofabrication technique, and have performed real-time observation of the decay of the holes in a temperature rage of 700 ∼ 800°C. From the observed time dependence of hole areas during decay, we have found that the rate limiting process of the decay is the surface diffusion. We have also investigated the effect of the existence of substrate steps and islands on the hole decay. [DOI: 10.1380/ejssnt.2006.307]