Article ID Journal Published Year Pages File Type
1866652 Physics Letters A 2016 4 Pages PDF
Abstract

•Hexagonal silicene rings possess unusually large diamagnetic moments.•The magnetic-field-driven spin-up electrons flow anticlockwise and spin-down electrons flow clockwise along the rings.•The large diamagnetic moment is the result of competition of spin-up and spin-down electrons.

Hexagonal silicene rings with unusually large diamagnetic moments have been found in a theoretical study of the electronic and magnetic properties. In the presence of effective spin–orbit coupling, the magnetic-field-driven spin-up electrons flow anticlockwise exhibiting colossal diamagnetic moments, while the spin-down electrons flow clockwise exhibiting colossal paramagnetic moments along the rings. The large diamagnetic moment is thus the result of competition of spin-up and spin-down electrons, which can be modulated by spin–orbit coupling strength and exchange field.

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Physical Sciences and Engineering Physics and Astronomy Physics and Astronomy (General)
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