Giant quadratic magneto-optical Kerr effect in (Eu,Gd)O films for magnetic field sensing

被引：12
|
作者：
Kats, Vladimir N. [1 ]
Nefedov, Sergey G. [1 ]
Shelukhin, Leonid A. [1 ]
Usachev, Pavel A. [1 ]
Averyanov, Dmitry V. [2 ]
Karateev, Igor A. [2 ]
Parfenov, Oleg E. [2 ]
Taldenkov, Alexander N. [2 ]
Tokmachev, Andrey M. [2 ]
Storchak, Vyacheslav G. [2 ]
Pavlov, Victor V. [1 ]
机构：
[1] Ioffe Inst, St Petersburg 194021, Russia
[2] Kurchatov Inst, Natl Res Ctr, Moscow 123182, Russia
来源：
APPLIED MATERIALS TODAY | 2020年 / 19卷
基金：
俄罗斯科学基金会; 俄罗斯基础研究基金会;
关键词：
Quadratic magneto-optical Kerr effect; Europium oxide EuO; Gd doping; Epitaxial film; Magnetic semiconductor; Magnetic field sensing; FERROMAGNETIC SEMICONDUCTOR EUO; EPITAXIAL INTEGRATION; SILICON; EXCHANGE; VECTOR;
D O I：
10.1016/j.apmt.2020.100640
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A quadratic magneto-optical Kerr effect (QMOKE) of exceptionally high value, strong polar and longitu-dinal linear Kerr effects have been demonstrated in thin films of ferromagnetic (Eu,Gd)O and the parent compound EuO epitaxially grown on yttria-stabilized zirconia. At a photon energy of 1.85 eV, the effect reaches 1 deg in Eu0.97Gd0.03O exceeding the reported values of giant QMOKE by an order of magnitude. It is demonstrated that the QMOKE in (Eu,Gd)O enables detailed optical studies of the in-plane magnetic anisotropy of the film. The observed giant QMOKE may be employed for the development of vectorial sensors of weak magnetic fields. (C) 2020 Elsevier Ltd. All rights reserved.
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页数：9
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