A Manganese Ions Ground State in Mn<sub>x</sub>Si<sub>1–x</sub>: Negative- <i>U</i>Properties Centre?

• 作者: S. M. Yakubenya
• 来源期刊: 自然科学期刊(英文)
• 学科: 化学
• 关键词: Manganese SILICIDE Silicon Impurity Strong Correlated System JAHN-TELLER Effect
• 年，卷（期）: zrkxqkyw_2015,（1）
• 页码范围: 1-9
• 页数: 9页
• 分类号: O6

摘要

In the paper, the properties of magnetic diluted and strong correlated systems of MnxSi1–x systems are discussed. The double defects including manganese ion and silicon vacancy are the frame work of the our model introduced for the description of these systems properties. The role of the Jahn-Teller distortions of different symmetry types in MnSi system magnetic-properties formation is discussed. It has been established that the manganese related defect is the center with negative-U properties and Jahn-Teller’s full symmetric vibration mode initiates change of a crystal-field value from intermediate to strong.