Department of Physics
Department of Physics
Visva-Bharati (A Central University)
Visva-Bharati (A Central University)
Santiniketan, Bolpur-731235, West Bengal
Santiniketan, Bolpur-731235, West Bengal
Epitaxial γ-FeSi2 and CoSi2 nanostructures, grown on a vicinal Si(111)-7 × 7 surface by sequentially depositing 1-monolayer (ML) of Fe and 1ML of Co on a hot Si substrate under ultrahigh vacuum condition, have been investigated by in-situ scanning tunneling microscopy, ex-situ field emission scanning electron microscopy and xray photoemission spectroscopy (XPS). While γ-FeSi2 nanostructures have grown as nanowires along the three equivalent 〈110〉 directions on the Si(111) surface, CoSi2 nanoislands have grown as equilateral triangular and trapezoidal islands. Such self-organized nanostructures may find applications in nanoscale devices including S-F hybrids for quantum technology, as CoSi2 is a superconductor (S) and γ-FeSi2 is a ferromagnet (F).
Epitaxial γ-FeSi2 and CoSi2 nanostructures, grown on a vicinal Si(111)-7 × 7 surface by sequentially depositing 1-monolayer (ML) of Fe and 1ML of Co on a hot Si substrate under ultrahigh vacuum condition, have been investigated by in-situ scanning tunneling microscopy, ex-situ field emission scanning electron microscopy and xray photoemission spectroscopy (XPS). While γ-FeSi2 nanostructures have grown as nanowires along the three equivalent 〈110〉 directions on the Si(111) surface, CoSi2 nanoislands have grown as equilateral triangular and trapezoidal islands. Such self-organized nanostructures may find applications in nanoscale devices including S-F hybrids for quantum technology, as CoSi2 is a superconductor (S) and γ-FeSi2 is a ferromagnet (F).
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