Magneto-optical enhancement in highly Poly-crystallized Ce substituted YIG thin films by PLD

Abstract

In this study, we used combinatorial pulsed laser deposition (PLD) method to deposit Ce:YIG thin films with high Ce concentration on silicon. Thin films with record high Ce concentrations of Ce_1.3Y_1.7Fe₅O₁₂ were successfully grown on silicon, which showed about 3 fold enhancement of the Kerr rotation at 635 nm wavelength compared to previously reported Ce₁Y₂Fe₅O₁₂. Ce_xY_3-xFe₅O₁₂ films with Ce concentration varying from 0.8 to x 1.4 were deposited on polycrystalline YIG thin film (60 nm) buffered Si substrates by PLD.