ZnO 中次表面施主的操控。
Manipulation of subsurface donors in ZnO.
机构信息
Institut für Experimentelle und Angewandte Physik, Christian-Albrechts-Universität zu Kiel, D-24098 Kiel, Germany.
出版信息
Phys Rev Lett. 2013 May 31;110(22):226101. doi: 10.1103/PhysRevLett.110.226101. Epub 2013 May 28.
Abstract
Single donors close to the ZnO(0001) surface are investigated with scanning tunneling microscopy. Their binding energies and depths are determined from spatially resolved spectra of the differential conductance. At elevated bias of the STM tip, vertical motion of the donors can be induced. The direction of the motion can be controlled by the bias polarity.
摘要
使用扫描隧道显微镜研究了接近 ZnO(0001) 表面的单个供体。通过微分电导的空间分辨光谱确定了它们的结合能和深度。在 STM 针尖的偏压升高时，可以诱导供体的垂直运动。运动的方向可以通过偏压极性来控制。
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