Effects of Thermal Annealing and Ni Addition on the Magnetic Properties of Co–CoO Multilayers-Reference-Cited by-同舟云学术

Effects of Thermal Annealing and Ni Addition on the Magnetic Properties of Co–CoO Multilayers

Published:2020-12 Issue:04 Volume:10 Page:2050030
ISSN:2010-3247
Container-title:SPIN
language:en
Short-container-title:SPIN

Author:

Anyfantis D. I.¹^ORCID,Kanistras N.¹,Barnasas A.¹,Poulopoulos P.¹,Papaioannou E. TH.²,Conca A.³⁴,Trachylis D.⁵,Politis C.⁶

Affiliation:

1. Department of Materials Science, School of Natural Sciences, University of Patras, 26504 Rio, Patras, Greece

2. Institut für Physik, Martin-Luther-Universität Halle-Wittenberg, Von-Danckelmann-Platz 3, 06120 Halle, Germany

3. Department of Physics, University of Kaiserslautern, Gottlieb-Daimler-Straße 47, 67663 Kaiserslautern, Germany

4. State Research Center for Optics and Material Sciences (OPTIMAS), University of Kaiserslautern, Gottlieb-Daimler-Straße 47, 67663 Kaiserslautern, Germany

5. Business Developer C.T.E.HUB, Patras Science Park S.A., Stadiou Str., GR-26504 Rio, Patras, Greece

6. Department of Materials Science and Engineering, University of Texas at Arlington, Arlington, TX 76019, USA

Abstract

The influence of mild thermal annealing and nickel addition on the magnetic properties of Co–CoO multilayers is investigated. Co–CoO and CoNi–CoNiO multilayers were fabricated by radio-frequency magnetron sputtering and natural oxidation. Their magnetic properties have been studied via the magneto-optical Kerr effect and a vector network analyzer ferromagnetic resonance setup. The Co–CoO multilayers were annealed up to 90[Formula: see text]min at [Formula: see text]C and they were found to be always in-plane magnetized. The value of Gilbert damping was evaluated. The multilayers after annealing or Ni addition show a small increase in coercivity without considerable changes in their anisotropy. The phenomenon of inverted hysteresis with negative remanence, with the field being applied perpendicular to the film plane, has been recorded. It was modeled with two coexisting magnetic moments with in-plane and perpendicular anisotropies, respectively.

Funder

Hellenic Foundation for Research and Innovation

Publisher

World Scientific Pub Co Pte Lt

Subject

Electrical and Electronic Engineering,Atomic and Molecular Physics, and Optics,Electronic, Optical and Magnetic Materials

Link

https://www.worldscientific.com/doi/pdf/10.1142/S2010324720500307

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