Diffusion Distribution of Cr and Mn Impurity Atoms in Silicon
Abstract
This work presents theoretical calculations of the diffusion coefficient, solubility, and diffusion distribution of Mn and Cr impurity atoms in silicon. The results of theoretical studies showed that the distribution of Cr element atoms in silicon is slightly different from the distribution of Mn element atoms in silicon, while the remaining physical and chemical properties are almost identical. Also, if a Mn atom is placed at a node in a silicon single crystal, it will have three charge states: neutral – Mn0, one electron lost – Mn+1, and two electrons lost – Mn+2. Similarly, if a Cr atom is placed at the node of a silicon single crystal, it will have four different charge states: neutral – Cr0, one electron lost – Cr+1, two electrons lost – Cr+2, and three electrons lost – Cr+3. Therefore, it is relevant to study the properties of doped silicon with Cr impurity atoms.
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