Magnetically intercalated multilayer silicene

E-ISSN： 2100-014x|185|issue|01010-01010

ISSN： 2100-014x

Source： EPJ Web of Conference, Vol.185, Iss.issue, 2018-07, pp. : 01010-01010

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Abstract

Silicene, a Si-based analogue of graphene, is predicted to exhibit topological electronic phases with exotic properties capable to revolutionize electronics. In particular, the silicene structure is highly advantageous for spintronics. However, lack of synthetic routes to free-standing and magnetically functionalized silicene compounds prevents experimental corroboration of the predictions. Here we synthesize EuSi₂, multilayer silicene intercalated with inherently magnetic Eu atoms, on SrSi₂/Si(001) templates. The resulting films are formed by crystallites of two mutually orthogonal orientations. The structure is firmly established with electron diffraction, X-ray diffraction and electron microscopy. The compound EuSi₂ exhibits non-trivial magnetic and transport properties. The data are compared with those for EuSi₂ films grown on SrSi₂/Si(111) templates.