Exchange dependent ultrafast magnetization dynamics in Fe${}_{1-x}$Ni${}_x$ alloys

Somnath Jana, Ronny Knut, Erna K. Delczeg-Czirjak +13

Element specific ultrafast demagnetization was studied in Fe${}_{1-x}$Ni${}_x$ alloys, covering the concentration range between $0.1<x<0.9$. For all compositions, we observe a delay…