Journal of Applied Physics

Spin waves in Co2FeGe films

D Dariia Popadiuk (Nanostructure Physics, Royal Institute of Technology 1 , 10691 Stockholm,) A Andriy Vovk (Departamento de Física e Astronomia, Institute of Physics for Advanced Materials, Nanotechnology and Photonics, Universidade do Porto 4 , 4169-007 Porto,) S Sergey A. Bunyaev (Departamento de Física e Astronomia, Institute of Physics for Advanced Materials, Nanotechnology and Photonics, Universidade do Porto 4 , 4169-007 Porto,) G Gleb N. Kakazei (Departamento de Física e Astronomia, Institute of Physics for Advanced Materials, Nanotechnology and Photonics, Universidade do Porto 4 , 4169-007 Porto,) J João P. Araújo (Departamento de Física e Astronomia, Institute of Physics for Advanced Materials, Nanotechnology and Photonics, Universidade do Porto 4 , 4169-007 Porto,) P Pavel Strichovanec (Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza 2 , E-50009 Zaragoza,) P Pedro A. Algarabel (Instituto de Nanociencia y Materiales de Aragón, Universidad de Zaragoza—CSIC 5 , Campus Río Ebro, 50018 Zaragoza,) V Vladimir Golub (Institute of Magnetism of NAS of Ukraine and MES of Ukraine 2 , 03142 Kyiv,) A Anatolii F. Kravets (Nanostructure Physics, Royal Institute of Technology 1 , 10691 Stockholm,) V Vladislav Korenivski (Nanostructure Physics, Royal Institute of Technology 1 , 10691 Stockholm,) A Aleksandra Trzaskowska (Institute of Spintronics and Quantum Information, Faculty of Physics, Adam Mickiewicz University, Poznań 3 , Uniwersytetu Poznańskiego 2, 61-614 Poznań,)

Abstract

The dynamic magnetic properties of full Heusler alloy thin films of Co2FeGe, grown on MgO (001) substrates under different thermal conditions, were investigated. Brillouin light scattering and ferromagnetic resonance measurements revealed that depositing at room temperature followed by annealing at 300 °C for 1 h produces the best results for maximizing magnetization, exchange stiffness, and minimizing spin-dynamic dissipation in the films, which are desirable characteristics for high-speed spintronic devices. Additionally, strong hybridization of spin waves in the Damon–Eshbach geometry was observed, which is attractive for applications in magnonic signal processing circuits.

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Article Details

Volume / Issue Vol. 137, Issue 12
Published March 28, 2025
ISSN 0021-8979
Publisher American Institute of Physics

Journal Info

Journal of Applied Physics

American Institute of Physics
ISSN: 0021-8979 Physical Sciences

Authors (11)

D

Dariia Popadiuk

Nanostructure Physics, Royal Institute of Technology 1 , 10691 Stockholm,

A

Andriy Vovk

Departamento de Física e Astronomia, Institute of Physics for Advanced Materials, Nanotechnology and Photonics, Universidade do Porto 4 , 4169-007 Porto,

S

Sergey A. Bunyaev

Departamento de Física e Astronomia, Institute of Physics for Advanced Materials, Nanotechnology and Photonics, Universidade do Porto 4 , 4169-007 Porto,

G

Gleb N. Kakazei

Departamento de Física e Astronomia, Institute of Physics for Advanced Materials, Nanotechnology and Photonics, Universidade do Porto 4 , 4169-007 Porto,

J

João P. Araújo

Departamento de Física e Astronomia, Institute of Physics for Advanced Materials, Nanotechnology and Photonics, Universidade do Porto 4 , 4169-007 Porto,

P

Pavel Strichovanec

Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza 2 , E-50009 Zaragoza,

P

Pedro A. Algarabel

Instituto de Nanociencia y Materiales de Aragón, Universidad de Zaragoza—CSIC 5 , Campus Río Ebro, 50018 Zaragoza,

V

Vladimir Golub

Institute of Magnetism of NAS of Ukraine and MES of Ukraine 2 , 03142 Kyiv,

A

Anatolii F. Kravets

Nanostructure Physics, Royal Institute of Technology 1 , 10691 Stockholm,

V

Vladislav Korenivski

Nanostructure Physics, Royal Institute of Technology 1 , 10691 Stockholm,

A

Aleksandra Trzaskowska

Institute of Spintronics and Quantum Information, Faculty of Physics, Adam Mickiewicz University, Poznań 3 , Uniwersytetu Poznańskiego 2, 61-614 Poznań,

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