Article ID Journal Published Year Pages File Type
7934135 Physica E: Low-dimensional Systems and Nanostructures 2015 14 Pages PDF
Abstract
Magnetism been studied in two series of nanocrystalline SiC films obtained by the method of direct deposition of ions with an energy of ~100 eV at temperatures 1150 °С and 1200 °С. There were separated the contributions of diamagnetism, paramagnetism and superparamagnetism+ferromagnetism. Magnetization value of the films correlates with the deposition temperature. In the films deposited at higher temperatures the value of magnetization was by 1.5 times lower. It was concluded that induced magnetism in nanocrystalline SiC films is caused by interaction of magnetic moments of neutral VSiVC divacancies in separate nanocrystals. The estimated concentration of neutral VSiVC divacancies in nanocrystalline SiC films is ~1020 сm−3.
Related Topics
Physical Sciences and Engineering Materials Science Electronic, Optical and Magnetic Materials
Authors
, , , , ,