Rajkumar Patra, Apoorva Sharma, Hartmut Stöcker, M. Monecke, G. Salvan, Roland Mattheis, Heidemarie Schmidt
{"title":"A versatile method for the exploration of magnetooptical properties of polar saturated and unsaturated ferromagnetic metallic thin films","authors":"Rajkumar Patra, Apoorva Sharma, Hartmut Stöcker, M. Monecke, G. Salvan, Roland Mattheis, Heidemarie Schmidt","doi":"10.1088/1361-6463/ad415c","DOIUrl":null,"url":null,"abstract":"\n 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 (\n Q\n ) 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 \n Q\n of both polar saturated and polar unsaturated FM thin films for simulating the MO properties of application-relevant optical memory multilayer structures.","PeriodicalId":507822,"journal":{"name":"Journal of Physics D: Applied Physics","volume":"58 11","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Physics D: Applied Physics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1088/1361-6463/ad415c","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
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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