Evolution of the interfacial magnetic anisotropy in MgO/CoFeB/Ta/Ru based multilayers as a function of annealing temperature

Evolution of the interfacial magnetic anisotropy in MgO/CoFeB/Ta/Ru based multilayers as a function of annealing temperature

We report the effect of annealing temperature on the dynamic and static magnetic properties of MgO/CoFeB/Ta/Ru multilayers. Angular resolved ferromagnetic resonance measurement results show that the as-deposited film exhibits in-plane magnetic anisotropy, whereas in the annealed films the magnetic e...

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Main Authors: Yuriy Aleksandrov, Ciarán Fowley, Ewa Kowalska, Volker Sluka, Oğuz Yıldırım, Jürgen Lindner, Berthold Ocker, Jürgen Fassbender, Alina M. Deac
Format: Article
Language:English
Published: AIP Publishing LLC 2016-06-01
Series:AIP Advances
Online Access:http://dx.doi.org/10.1063/1.4954809
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spelling doaj-a31371b881e348ef83dc635adf6922b92020-11-24T22:32:14ZengAIP Publishing LLCAIP Advances2158-32262016-06-0166065321065321-610.1063/1.4954809080606ADVEvolution of the interfacial magnetic anisotropy in MgO/CoFeB/Ta/Ru based multilayers as a function of annealing temperatureYuriy Aleksandrov0Ciarán Fowley1Ewa Kowalska2Volker Sluka3Oğuz Yıldırım4Jürgen Lindner5Berthold Ocker6Jürgen Fassbender7Alina M. Deac8Helmholtz-Zentrum Dresden - Rossendorf, Institute of Ion Beam Physics and Materials Research, Bautzner Landstr. 400, 01328 Dresden, GermanyHelmholtz-Zentrum Dresden - Rossendorf, Institute of Ion Beam Physics and Materials Research, Bautzner Landstr. 400, 01328 Dresden, GermanyHelmholtz-Zentrum Dresden - Rossendorf, Institute of Ion Beam Physics and Materials Research, Bautzner Landstr. 400, 01328 Dresden, GermanyHelmholtz-Zentrum Dresden - Rossendorf, Institute of Ion Beam Physics and Materials Research, Bautzner Landstr. 400, 01328 Dresden, GermanyHelmholtz-Zentrum Dresden - Rossendorf, Institute of Ion Beam Physics and Materials Research, Bautzner Landstr. 400, 01328 Dresden, GermanyHelmholtz-Zentrum Dresden - Rossendorf, Institute of Ion Beam Physics and Materials Research, Bautzner Landstr. 400, 01328 Dresden, GermanySingulus Technologies AG, Kahl am Main, GermanyHelmholtz-Zentrum Dresden - Rossendorf, Institute of Ion Beam Physics and Materials Research, Bautzner Landstr. 400, 01328 Dresden, GermanyHelmholtz-Zentrum Dresden - Rossendorf, Institute of Ion Beam Physics and Materials Research, Bautzner Landstr. 400, 01328 Dresden, GermanyWe report the effect of annealing temperature on the dynamic and static magnetic properties of MgO/CoFeB/Ta/Ru multilayers. Angular resolved ferromagnetic resonance measurement results show that the as-deposited film exhibits in-plane magnetic anisotropy, whereas in the annealed films the magnetic easy-axis is almost along the direction perpendicular to the plane of the layers. The extracted interfacial anisotropy energy, Ki, is maximized at an annealing temperature 225∘C, in agreement with the vibrating sample magnetometry results. Although the magnetization is not fully out-of-plane, controlling the degree of the magnetization obliqueness may be advantageous for specific applications such as spin-transfer oscillators.http://dx.doi.org/10.1063/1.4954809
collection DOAJ
language English
format Article
sources DOAJ
author Yuriy Aleksandrov
Ciarán Fowley
Ewa Kowalska
Volker Sluka
Oğuz Yıldırım
Jürgen Lindner
Berthold Ocker
Jürgen Fassbender
Alina M. Deac
spellingShingle Yuriy Aleksandrov
Ciarán Fowley
Ewa Kowalska
Volker Sluka
Oğuz Yıldırım
Jürgen Lindner
Berthold Ocker
Jürgen Fassbender
Alina M. Deac
Evolution of the interfacial magnetic anisotropy in MgO/CoFeB/Ta/Ru based multilayers as a function of annealing temperature
AIP Advances
author_facet Yuriy Aleksandrov
Ciarán Fowley
Ewa Kowalska
Volker Sluka
Oğuz Yıldırım
Jürgen Lindner
Berthold Ocker
Jürgen Fassbender
Alina M. Deac
author_sort Yuriy Aleksandrov
title Evolution of the interfacial magnetic anisotropy in MgO/CoFeB/Ta/Ru based multilayers as a function of annealing temperature
title_short Evolution of the interfacial magnetic anisotropy in MgO/CoFeB/Ta/Ru based multilayers as a function of annealing temperature
title_full Evolution of the interfacial magnetic anisotropy in MgO/CoFeB/Ta/Ru based multilayers as a function of annealing temperature
title_fullStr Evolution of the interfacial magnetic anisotropy in MgO/CoFeB/Ta/Ru based multilayers as a function of annealing temperature
title_full_unstemmed Evolution of the interfacial magnetic anisotropy in MgO/CoFeB/Ta/Ru based multilayers as a function of annealing temperature
title_sort evolution of the interfacial magnetic anisotropy in mgo/cofeb/ta/ru based multilayers as a function of annealing temperature
publisher AIP Publishing LLC
series AIP Advances
issn 2158-3226
publishDate 2016-06-01
description We report the effect of annealing temperature on the dynamic and static magnetic properties of MgO/CoFeB/Ta/Ru multilayers. Angular resolved ferromagnetic resonance measurement results show that the as-deposited film exhibits in-plane magnetic anisotropy, whereas in the annealed films the magnetic easy-axis is almost along the direction perpendicular to the plane of the layers. The extracted interfacial anisotropy energy, Ki, is maximized at an annealing temperature 225∘C, in agreement with the vibrating sample magnetometry results. Although the magnetization is not fully out-of-plane, controlling the degree of the magnetization obliqueness may be advantageous for specific applications such as spin-transfer oscillators.
url http://dx.doi.org/10.1063/1.4954809
work_keys_str_mv AT yuriyaleksandrov evolutionoftheinterfacialmagneticanisotropyinmgocofebtarubasedmultilayersasafunctionofannealingtemperature
AT ciaranfowley evolutionoftheinterfacialmagneticanisotropyinmgocofebtarubasedmultilayersasafunctionofannealingtemperature
AT ewakowalska evolutionoftheinterfacialmagneticanisotropyinmgocofebtarubasedmultilayersasafunctionofannealingtemperature
AT volkersluka evolutionoftheinterfacialmagneticanisotropyinmgocofebtarubasedmultilayersasafunctionofannealingtemperature
AT oguzyıldırım evolutionoftheinterfacialmagneticanisotropyinmgocofebtarubasedmultilayersasafunctionofannealingtemperature
AT jurgenlindner evolutionoftheinterfacialmagneticanisotropyinmgocofebtarubasedmultilayersasafunctionofannealingtemperature
AT bertholdocker evolutionoftheinterfacialmagneticanisotropyinmgocofebtarubasedmultilayersasafunctionofannealingtemperature
AT jurgenfassbender evolutionoftheinterfacialmagneticanisotropyinmgocofebtarubasedmultilayersasafunctionofannealingtemperature
AT alinamdeac evolutionoftheinterfacialmagneticanisotropyinmgocofebtarubasedmultilayersasafunctionofannealingtemperature
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