Skyrmion Dynamics in a Double-Disk Geometry under an Electric Current: Part Two
Using numerical simulations, we studied the dynamics of two skyrmions nucleated in a double-disk structure. Depending on the geometry and the electric current, different regimes for the dynamical behavior of the skyrmions were obtained. Our results evidence that there are four main dynamic regimes d...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-10-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/12/21/3793 |
| _version_ | 1797466976163987456 |
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| author | Sebastián Castillo-Sepúlveda Javier A. Vélez Rosa M. Corona Vagson L. Carvalho-Santos David Laroze Dora Altbir |
| author_facet | Sebastián Castillo-Sepúlveda Javier A. Vélez Rosa M. Corona Vagson L. Carvalho-Santos David Laroze Dora Altbir |
| author_sort | Sebastián Castillo-Sepúlveda |
| collection | DOAJ |
| description | Using numerical simulations, we studied the dynamics of two skyrmions nucleated in a double-disk structure. Depending on the geometry and the electric current, different regimes for the dynamical behavior of the skyrmions were obtained. Our results evidence that there are four main dynamic regimes depending on the geometry and current: stagnation points, oscillatory motion, and two types of skyrmion annihilation: partial and total. Our findings are explained as a result of the different forces that skyrmions are subject to and are shown in a state diagram of the dynamical states that allow an adequate understanding of the associate phenomena. |
| first_indexed | 2024-03-09T18:46:37Z |
| format | Article |
| id | doaj.art-0459a6b360094d2f8342cc1bd1f8d749 |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-09T18:46:37Z |
| publishDate | 2022-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-0459a6b360094d2f8342cc1bd1f8d7492023-11-24T06:09:16ZengMDPI AGNanomaterials2079-49912022-10-011221379310.3390/nano12213793Skyrmion Dynamics in a Double-Disk Geometry under an Electric Current: Part TwoSebastián Castillo-Sepúlveda0Javier A. Vélez1Rosa M. Corona2Vagson L. Carvalho-Santos3David Laroze4Dora Altbir5Grupo de Investigación en Física Aplicada, Facultad de Ingeniería, Universidad Autónoma de Chile, Avda. Pedro de Valdivia 425, Providencia 7500912, ChileDepartamento de Polímeros y Materiales Avanzados: Física, Química y Tecnología, Universidad del País Vasco, UPV/EHU, Paseo M. Lardizabal, 3, 20018 San Sebastián, SpainDepartamento de Física, CEDENNA, Universidad de Santiago de Chile, Avda. Víctor Jara 3493, Santiago 9170022, ChileDepartamento de Física, Universidade Federal de Viçosa, Avenida Peter Henry Rolfs s/n, Viçosa 36570-000, MG, BrazilInstituto de Alta Investigación, Universidad de Tarapacá, Casilla 7D, Arica 1000000, ChileDepartamento de Física, CEDENNA, Universidad de Santiago de Chile, Avda. Víctor Jara 3493, Santiago 9170022, ChileUsing numerical simulations, we studied the dynamics of two skyrmions nucleated in a double-disk structure. Depending on the geometry and the electric current, different regimes for the dynamical behavior of the skyrmions were obtained. Our results evidence that there are four main dynamic regimes depending on the geometry and current: stagnation points, oscillatory motion, and two types of skyrmion annihilation: partial and total. Our findings are explained as a result of the different forces that skyrmions are subject to and are shown in a state diagram of the dynamical states that allow an adequate understanding of the associate phenomena.https://www.mdpi.com/2079-4991/12/21/3793magnetic skyrmionsspin torque nano-oscillatorsskyrmion–skyrmion interactiondynamics |
| spellingShingle | Sebastián Castillo-Sepúlveda Javier A. Vélez Rosa M. Corona Vagson L. Carvalho-Santos David Laroze Dora Altbir Skyrmion Dynamics in a Double-Disk Geometry under an Electric Current: Part Two Nanomaterials magnetic skyrmions spin torque nano-oscillators skyrmion–skyrmion interaction dynamics |
| title | Skyrmion Dynamics in a Double-Disk Geometry under an Electric Current: Part Two |
| title_full | Skyrmion Dynamics in a Double-Disk Geometry under an Electric Current: Part Two |
| title_fullStr | Skyrmion Dynamics in a Double-Disk Geometry under an Electric Current: Part Two |
| title_full_unstemmed | Skyrmion Dynamics in a Double-Disk Geometry under an Electric Current: Part Two |
| title_short | Skyrmion Dynamics in a Double-Disk Geometry under an Electric Current: Part Two |
| title_sort | skyrmion dynamics in a double disk geometry under an electric current part two |
| topic | magnetic skyrmions spin torque nano-oscillators skyrmion–skyrmion interaction dynamics |
| url | https://www.mdpi.com/2079-4991/12/21/3793 |
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