Density, elastic and magnetic properties of Co–Fe–Ta–Si metallic glasses by theory and experiment

• Ab initio molecular dynamics simulations were employed to study the density, elastic and magnetic properties of Co–Fe–Ta–Si10 metallic glass thin films. A density of 8.03 g cm3, a Young’s modulus of 187 GPa and a volume magnetization of 0.089 lBA ˚ 3 werecalculated and validated by thin film experiments. The extensive stiffness of this glass may be related to the existence of strong(Fe,Co)–Si clusters as revealed by ab initio chemical short-range order data.

Ämnesord

NATURVETENSKAP  -- Fysik -- Den kondenserade materiens fysik (hsv//swe)

NATURAL SCIENCES  -- Physical Sciences -- Condensed Matter Physics (hsv//eng)

Nyckelord

Metallic glasses

Co-Fe-Ta-B

Ab-inition calculation

Thin films

Materiefysik

Physics of Matter

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