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arXiv · 0908.1494

Magnetic Silicon Fullerene

Jing Wang·Ying Liu·You-Cheng Li
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Abstract

A metal-encapsulating silicon fullerene, Eu@Si20, has been predicted by density functional theory to be by far the most stable fullerene-like silicon structure. The Eu@Si20 structure is a dodecahedron with D2h symmetry in which the europium atom occupies the center site. The calculated results show that the europium atom has a large magnetic moment of nearly 7.0 Bohr magnetons. In addition, it was found that a stable "pearl necklace" nanowire, constructed by concatenating a series of Eu@Si20 units, with the central europium atom, retains the high spin moment. The magnetic structure of the nanowire indicates potential applications in the fields of spintronics and high-density magnetic storage.

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Jing Wang, Ying Liu, You-Cheng Li. 2009-08-11. Magnetic Silicon Fullerene. https://doi.org/10.1039/b923865d

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