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.

引用

页数：9

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