Contact-Free Micropipe Reactions in Silicon Carbide
We discuss a correlated reduction in the cross sections of two neighboring micropipes (MPs) along their axes (generally parallel to the growth direction). Such variations in MP cross sections can lead to MP healing. We provide experimental evidence of this effect and discuss its reasons and a possible mechanism. Our main idea is that MPs can remotely interact with each other by the exchange of full-core dislocations. We propose a theoretical model describing the energetics of this process.
Alexander A. Lebedev, Sergey Yu. Davydov, Pavel A. Ivanov and Mikhail E. Levinshtein
A. G. Sheinerman et al., "Contact-Free Micropipe Reactions in Silicon Carbide", Materials Science Forum, Vols. 740-742, pp. 597-600, 2013