Longitudinal magneto-optical Kerr effect in subwavelength thick ferromagnetic films investigated by Mueller matrix ellipsometry

Liu, Jiamin; Gong, Wenqi; Li, Lei; Zhang, Song; Zhu, Jinlong; Chen, Rong; Jiang, Hao; Liu, Shiyuan

doi:10.1016/j.optlaseng.2023.107803

Cited by 6 publications

(1 citation statement)

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“…Therefore, VMOGE can be used to analyze the MO response of polar unsaturated ferromagnetic thin films where M x and M y are not known. So far, reports are only available for MOKE [26,27] and VMOGE [14]. However, there are very few analyses of the MO response of polar unsaturated ferromagnetic thin films with unknown M x and M y using MOKE or VMOGE.…”

Section: Introductionmentioning

confidence: 99%

A versatile method for exploring the magnetooptical properties of polar saturated and unsaturated ferromagnetic metallic thin films

Patra,

Sharma,

Stöcker

et al. 2024

J. Phys. D: Appl. Phys.

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Polar unsaturated ferromagnetic thin films are promising for low-power and high-speed nonvolatile resistive and optical memories. Here we measure the magnetooptical (MO) response of polar unsaturated Co90Fe10 and Co40Fe40B20 thin films in the spectral range from 400 nm to 1000 nm using vector magnetooptical generalized ellipsometry (VMOGE) in an out-of-plane applied magnetic field of ±0.4 T where magnetization of the ferromagnetic (FM) thin film is not saturated. Using Magneto- Optical Simulation software (MagOpS®), we extract the complex MO coupling constant ( Q ) of the polar unsaturated FM thin films from difference spectra of VMOGE data recorded in polar configuration at Hz = +0.4 T and at Hz = −0.4 T. Presented approach opens a path to determine Q of both polar saturated and polar unsaturated FM thin films for simulating the MO properties of application-relevant optical memory multilayer structures.

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Section: Introductionmentioning

confidence: 99%