Magneto-optical Kerr-effect enhancement in glass/Cu/SnO2/Co/SnO2 thin films

Majid Ghanaatshoar; Mehrdad Moradi

doi:10.1117/1.3625419

1 September 2011 Magneto-optical Kerr-effect enhancement in glass/Cu/SnO₂/Co/SnO₂ thin films

Majid Ghanaatshoar, Mehrdad Moradi

Author Affiliations +

Optical Engineering, Vol. 50, Issue 9, 093801 (September 2011). https://doi.org/10.1117/1.3625419

Abstract

We incorporate Co thin layers into the quadrilayer structure of glass/Cu/SnO₂/Co/SnO₂ and investigate the effect of transparent semiconductor SnO₂ as cap and spacer layers on the magnitude of a magneto-optical Kerr signal. The theoretical calculations based on a 4 × 4 matrix method are exploited to find the best possible multilayer structure. Accordingly, we fabricate several samples and acquire large Kerr signals in both polar and longitudinal geometries. Furthermore, the effect of vacuum annealing on the magnetic response of the samples is investigated. It is revealed that annealing at high temperatures may reduce the Kerr response because of uncontrolled heat-induced interdiffusion of adjacent layers.

©(2011) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

Majid Ghanaatshoar and Mehrdad Moradi "Magneto-optical Kerr-effect enhancement in glass/Cu/SnO₂/Co/SnO₂ thin films," Optical Engineering 50(9), 093801 (1 September 2011). https://doi.org/10.1117/1.3625419

Published: 1 September 2011

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