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目前显示的是标签为“Jahn-Teller Effect”的博文

A Manganese Ions Ground State in MnxSi1–x: Negative- U Properties Centre?

Read  full  paper  at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=52977#.VK8wEcnQrzE Author(s)   S. M. Yakubenya Affiliation(s) RRC “Kurchatov Institute”, Moscow, Russia . ABSTRACT In the paper, the properties of magnetic diluted and strong correlated systems of Mn x Si 1<span "="">–x systems are discussed. In frame work of the model, the double defects including manganese ion and silicon vacancy are considered properties of these systems. 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.   KEYWORDS Manganese Silicide , Silicon , Impurity , Strong Correlated System , Jahn-Teller Effect Cite this paper ...