Formation Two Dimensional Negative Islands at High Rate Cooling of Ultra-Flat Surface Si(111)

Sergey V. Sitnikov
1. Rzhanov Institute of Semiconductor Physics SB RAS Novosibirsk, Russian Federation
2. Novosibirsk State University Novosibirsk, Russian Federation
sitnikov@isp.nsc.ru
Sergey S. Kosolobov
1. Rzhanov Institute of Semiconductor Physics SB RAS Novosibirsk, Russian Federation
2. Novosibirsk State University Novosibirsk, Russian Federation
kosolobov@isp.nsc.ru
Aleksandr V. Latyshev
1. Novosibirsk State University Novosibirsk, Russian Federation
2. Rzhanov Institute of Semiconductor Physics SB RAS Novosibirsk, Russian Federation
latyshev@isp.nsc.ru
The material was received by the Editorial Board: 04.12.2015
In situ ultrahigh vacuum reflection electron and ex situ atomic force microscopy have been applied to investigate morphology transformations of the ultra-flat stepped Si(111) surface with wide (20–50 µm in diameter) singular terraces during sublimation and quenching from elevated temperatures. The formation of two dimensional negative (vacancy) islands has been observed on the wide terraces after the quenching from temperatures above 1 200°C. The increasing of the critical terrace size for the two-dimensional negative island nucleation has been explained by the changing of the atomic mechanism of mass transport on silicon surface.

Keywords:
silicon surface, ultrahigh vacuum reflection electron microscopy, quenching.
УДК 539.211, 538.971

Formation Two Dimensional Negative Islands at High Rate Cooling of Ultra-Flat Surface Si(111)
References: Sitnikov S. V., Kosolobov S. S., Latyshev A. V. Formation Two Dimensional Negative Islands at High Rate Cooling of Ultra-Flat Surface Si(111). Vestnik NSU. Series: Physics. 2016, vol. 11, no. 1. P. 94–99. (in Russ.). DOI: 10.54362/1818-7919-2016-11-1-94-99