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

Abstract

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, K{sub i}, is maximized at an annealing temperature 225{sup ∘}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.

Authors:
;  [1];  [2]; ; ; ; ; ;  [1];  [3]
  1. Helmholtz-Zentrum Dresden - Rossendorf, Institute of Ion Beam Physics and Materials Research, Bautzner Landstr. 400, 01328 Dresden (Germany)
  2. (Germany)
  3. Singulus Technologies AG, Kahl am Main (Germany)
Publication Date:
OSTI Identifier:
22611573
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Advances; Journal Volume: 6; Journal Issue: 6; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ANISOTROPY; ANNEALING; BORON COMPOUNDS; COBALT COMPOUNDS; EVOLUTION; FERROMAGNETIC RESONANCE; FILMS; IRON COMPOUNDS; LAYERS; MAGNESIUM OXIDES; MAGNETIC PROPERTIES; MAGNETIZATION; OSCILLATORS; RUBIDIUM; SPIN; TANTALUM; TERNARY ALLOY SYSTEMS

Citation Formats

Aleksandrov, Yuriy, E-mail: y.aleksandrov@hzdr.de, Kowalska, Ewa, Technische Universität Dresden, D-01062 Dresden, Fowley, Ciarán, Sluka, Volker, Yıldırım, Oğuz, Lindner, Jürgen, Fassbender, Jürgen, Deac, Alina M., and Ocker, Berthold. Evolution of the interfacial magnetic anisotropy in MgO/CoFeB/Ta/Ru based multilayers as a function of annealing temperature. United States: N. p., 2016. Web. doi:10.1063/1.4954809.
Aleksandrov, Yuriy, E-mail: y.aleksandrov@hzdr.de, Kowalska, Ewa, Technische Universität Dresden, D-01062 Dresden, Fowley, Ciarán, Sluka, Volker, Yıldırım, Oğuz, Lindner, Jürgen, Fassbender, Jürgen, Deac, Alina M., & Ocker, Berthold. Evolution of the interfacial magnetic anisotropy in MgO/CoFeB/Ta/Ru based multilayers as a function of annealing temperature. United States. doi:10.1063/1.4954809.
Aleksandrov, Yuriy, E-mail: y.aleksandrov@hzdr.de, Kowalska, Ewa, Technische Universität Dresden, D-01062 Dresden, Fowley, Ciarán, Sluka, Volker, Yıldırım, Oğuz, Lindner, Jürgen, Fassbender, Jürgen, Deac, Alina M., and Ocker, Berthold. Wed . "Evolution of the interfacial magnetic anisotropy in MgO/CoFeB/Ta/Ru based multilayers as a function of annealing temperature". United States. doi:10.1063/1.4954809.
@article{osti_22611573,
title = {Evolution of the interfacial magnetic anisotropy in MgO/CoFeB/Ta/Ru based multilayers as a function of annealing temperature},
author = {Aleksandrov, Yuriy, E-mail: y.aleksandrov@hzdr.de and Kowalska, Ewa and Technische Universität Dresden, D-01062 Dresden and Fowley, Ciarán and Sluka, Volker and Yıldırım, Oğuz and Lindner, Jürgen and Fassbender, Jürgen and Deac, Alina M. and Ocker, Berthold},
abstractNote = {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, K{sub i}, is maximized at an annealing temperature 225{sup ∘}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.},
doi = {10.1063/1.4954809},
journal = {AIP Advances},
number = 6,
volume = 6,
place = {United States},
year = {Wed Jun 15 00:00:00 EDT 2016},
month = {Wed Jun 15 00:00:00 EDT 2016}
}