Open AccessОсобенности магниторефрактивного эффекта в многослойной металлической наноструктуре [CoFe/Cu]-=SUB=-n-=/SUB=--=SUP=-*-=/SUP=-
Author(s) -
А.Н. Юрасов,
А. V. Telegin,
Н. С. Банникова,
М.А. Миляев,
Ю.П. Сухоруков
Publication year - 2018
Publication title -
fizika tverdogo tela
Language(s) - English
Resource type - Journals
eISSN - 1726-7498
pISSN - 0367-3294
DOI - 10.21883/ftt.2018.02.45381.201
Subject(s) - materials science , condensed matter physics , nanostructure , extinction (optical mineralogy) , reflection (computer programming) , giant magnetoresistance , magnetic field , metal , magnetoresistance , refraction , field (mathematics) , optics , nanotechnology , physics , metallurgy , mathematics , quantum mechanics , computer science , pure mathematics , programming language
AbstractThe features of magnetorefractive effect (MRE) in metallic multilayer film Ni_48Fe_12Cr_40(50 Å)/[Co_90Fe_10(14 Å)/Cu(22 Å)]_8/Cr(20 Å) nanostructures, which exhibit giant magnetoresistance at room temperature, are investigated experimentally and theoretically. We show that the MRE in these structures reaches 1.5% in an applied magnetic field of 3.5 kOe, in a broad part of the IR region, and can change sign for both transmission and reflection of light. The refraction and extinction coefficients that are calculated for the nanostructures in an external magnetic field are in good agreement with our experimental data. The deduced formulas can be applied to estimating the MRE in multilayer metallic nanostructures.