Control of Structural and Magnetic Properties of Polycrystalline Co<sub>2</sub>FeGe Films via Deposition and Annealing Temperatures
Thin polycrystalline Co<sub>2</sub>FeGe films with composition close to stoichiometry have been fabricated using magnetron co-sputtering technique. Effects of substrate temperature (T<sub>S</sub>) and post-deposition annealing (T<sub>a</sub>) on structure, static...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-05-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/11/5/1229 |
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| author | Andrii Vovk Sergey A. Bunyaev Pavel Štrichovanec Nikolay R. Vovk Bogdan Postolnyi Arlete Apolinario José Ángel Pardo Pedro Antonio Algarabel Gleb N. Kakazei João Pedro Araujo |
| author_facet | Andrii Vovk Sergey A. Bunyaev Pavel Štrichovanec Nikolay R. Vovk Bogdan Postolnyi Arlete Apolinario José Ángel Pardo Pedro Antonio Algarabel Gleb N. Kakazei João Pedro Araujo |
| author_sort | Andrii Vovk |
| collection | DOAJ |
| description | Thin polycrystalline Co<sub>2</sub>FeGe films with composition close to stoichiometry have been fabricated using magnetron co-sputtering technique. Effects of substrate temperature (T<sub>S</sub>) and post-deposition annealing (T<sub>a</sub>) on structure, static and dynamic magnetic properties were systematically studied. It is shown that elevated T<sub>S</sub> (T<sub>a</sub>) promote formation of ordered L2<sub>1</sub> crystal structure. Variation of T<sub>S</sub> (T<sub>a</sub>) allow modification of magnetic properties in a broad range. Saturation magnetization ~920 emu/cm<sup>3</sup> and low magnetization damping parameter α ~ 0.004 were achieved for T<sub>S</sub> = 573 K. This in combination with soft ferromagnetic properties (coercivity below 6 Oe) makes the films attractive candidates for spin-transfer torque and magnonic devices. |
| first_indexed | 2024-03-10T11:38:32Z |
| format | Article |
| id | doaj.art-5c5c72b931b14d8c94561c41b3d4c619 |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-10T11:38:32Z |
| publishDate | 2021-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-5c5c72b931b14d8c94561c41b3d4c6192023-11-21T18:38:31ZengMDPI AGNanomaterials2079-49912021-05-01115122910.3390/nano11051229Control of Structural and Magnetic Properties of Polycrystalline Co<sub>2</sub>FeGe Films via Deposition and Annealing TemperaturesAndrii Vovk0Sergey A. Bunyaev1Pavel Štrichovanec2Nikolay R. Vovk3Bogdan Postolnyi4Arlete Apolinario5José Ángel Pardo6Pedro Antonio Algarabel7Gleb N. Kakazei8João Pedro Araujo9Departamento de Física e Astronomia, Institute of Physics for Advanced Materials, Nanotechnology and Photonics (IFIMUP), Universidade do Porto, 4169-007 Porto, PortugalDepartamento de Física e Astronomia, Institute of Physics for Advanced Materials, Nanotechnology and Photonics (IFIMUP), Universidade do Porto, 4169-007 Porto, PortugalInstituto de Nanociencia y Materiales de Aragón, Campus Río Ebro, Universidad de Zaragoza—CSIC, 50018 Zaragoza, SpainDepartamento de Física e Astronomia, Institute of Physics for Advanced Materials, Nanotechnology and Photonics (IFIMUP), Universidade do Porto, 4169-007 Porto, PortugalDepartamento de Física e Astronomia, Institute of Physics for Advanced Materials, Nanotechnology and Photonics (IFIMUP), Universidade do Porto, 4169-007 Porto, PortugalDepartamento de Física e Astronomia, Institute of Physics for Advanced Materials, Nanotechnology and Photonics (IFIMUP), Universidade do Porto, 4169-007 Porto, PortugalInstituto de Nanociencia y Materiales de Aragón, Campus Río Ebro, Universidad de Zaragoza—CSIC, 50018 Zaragoza, SpainInstituto de Nanociencia y Materiales de Aragón, Campus San Francisco, Universidad de Zaragoza—CSIC, 50009 Zaragoza, SpainDepartamento de Física e Astronomia, Institute of Physics for Advanced Materials, Nanotechnology and Photonics (IFIMUP), Universidade do Porto, 4169-007 Porto, PortugalDepartamento de Física e Astronomia, Institute of Physics for Advanced Materials, Nanotechnology and Photonics (IFIMUP), Universidade do Porto, 4169-007 Porto, PortugalThin polycrystalline Co<sub>2</sub>FeGe films with composition close to stoichiometry have been fabricated using magnetron co-sputtering technique. Effects of substrate temperature (T<sub>S</sub>) and post-deposition annealing (T<sub>a</sub>) on structure, static and dynamic magnetic properties were systematically studied. It is shown that elevated T<sub>S</sub> (T<sub>a</sub>) promote formation of ordered L2<sub>1</sub> crystal structure. Variation of T<sub>S</sub> (T<sub>a</sub>) allow modification of magnetic properties in a broad range. Saturation magnetization ~920 emu/cm<sup>3</sup> and low magnetization damping parameter α ~ 0.004 were achieved for T<sub>S</sub> = 573 K. This in combination with soft ferromagnetic properties (coercivity below 6 Oe) makes the films attractive candidates for spin-transfer torque and magnonic devices.https://www.mdpi.com/2079-4991/11/5/1229thin filmsHeusler alloysmagnetostatic propertiesFerromagnetic resonance |
| spellingShingle | Andrii Vovk Sergey A. Bunyaev Pavel Štrichovanec Nikolay R. Vovk Bogdan Postolnyi Arlete Apolinario José Ángel Pardo Pedro Antonio Algarabel Gleb N. Kakazei João Pedro Araujo Control of Structural and Magnetic Properties of Polycrystalline Co<sub>2</sub>FeGe Films via Deposition and Annealing Temperatures Nanomaterials thin films Heusler alloys magnetostatic properties Ferromagnetic resonance |
| title | Control of Structural and Magnetic Properties of Polycrystalline Co<sub>2</sub>FeGe Films via Deposition and Annealing Temperatures |
| title_full | Control of Structural and Magnetic Properties of Polycrystalline Co<sub>2</sub>FeGe Films via Deposition and Annealing Temperatures |
| title_fullStr | Control of Structural and Magnetic Properties of Polycrystalline Co<sub>2</sub>FeGe Films via Deposition and Annealing Temperatures |
| title_full_unstemmed | Control of Structural and Magnetic Properties of Polycrystalline Co<sub>2</sub>FeGe Films via Deposition and Annealing Temperatures |
| title_short | Control of Structural and Magnetic Properties of Polycrystalline Co<sub>2</sub>FeGe Films via Deposition and Annealing Temperatures |
| title_sort | control of structural and magnetic properties of polycrystalline co sub 2 sub fege films via deposition and annealing temperatures |
| topic | thin films Heusler alloys magnetostatic properties Ferromagnetic resonance |
| url | https://www.mdpi.com/2079-4991/11/5/1229 |
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