Dzyaloshinskii-Moriya bias in a free-standing asymmetric homogeneous nanodisk
An off-center shift of the magnetic hysteresis loop, usually known as exchange bias, develops in an asymmetric nanodisk due to the Dzyaloshinskii-Moriya (DM) interaction. Results exhibit the onset of bias in a system without material interfaces, originating from the relation between the chirality de...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2024-01-01
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| Series: | Results in Physics |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2211379723010392 |
| _version_ | 1797350860109381632 |
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| author | S. Castillo-Sepúlveda R.M. Corona M. Kiwi V.L. Carvalho-Santos D. Altbir |
| author_facet | S. Castillo-Sepúlveda R.M. Corona M. Kiwi V.L. Carvalho-Santos D. Altbir |
| author_sort | S. Castillo-Sepúlveda |
| collection | DOAJ |
| description | An off-center shift of the magnetic hysteresis loop, usually known as exchange bias, develops in an asymmetric nanodisk due to the Dzyaloshinskii-Moriya (DM) interaction. Results exhibit the onset of bias in a system without material interfaces, originating from the relation between the chirality defined by the DM interaction and the geometry. In addition, programmable magnetization bias by the variation of an external field emerges as a possibility. Our simulations, carried out using Mumax3 code, also yield double hysteresis loops, evidencing a magnetization reversal driven by vortex nucleation and annihilation. Bias in a homogeneous nanodisk and its control seem promising for applications. |
| first_indexed | 2024-03-08T12:52:07Z |
| format | Article |
| id | doaj.art-307aa6350f824dda890b2a16fc94f3fc |
| institution | Directory Open Access Journal |
| issn | 2211-3797 |
| language | English |
| last_indexed | 2024-03-08T12:52:07Z |
| publishDate | 2024-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Physics |
| spelling | doaj.art-307aa6350f824dda890b2a16fc94f3fc2024-01-20T04:45:06ZengElsevierResults in Physics2211-37972024-01-0156107246Dzyaloshinskii-Moriya bias in a free-standing asymmetric homogeneous nanodiskS. Castillo-Sepúlveda0R.M. Corona1M. Kiwi2V.L. Carvalho-Santos3D. Altbir4Grupo de Investigación en Física Aplicada, Facultad de Ingeniería, Universidad Autónoma de Chile, Avda. Pedro de Valdivia 425, Providencia, ChileDepartamento de Física, Facultad de Ciencias Naturales, Matemática y del Medio Ambiente, Universidad Tecnológica Metropolitana, Las Palmeras 3360, Ñuñoa 780-0003, Santiago, Chile; Centro para el Desarrollo de la Nanociencia y la Nanotecnología, CEDENNA, Av. Libertador Bernardo O’Higgins 3363, 9170124, Santiago, ChileDepartamento de Física, Facultad de Ciencias, Universidad de Chile, Las Palmeras 3425, Ñuñoa, Santiago, 7571468, Chile; Centro para el Desarrollo de la Nanociencia y la Nanotecnología, CEDENNA, Av. Libertador Bernardo O’Higgins 3363, 9170124, Santiago, ChileUniversidade Federal de Viçosa, Departamento de Física, Avenida Peter Henry Rolfs s/n, 36570-000, Viçosa, MG, Brazil; Centro para el Desarrollo de la Nanociencia y la Nanotecnología, CEDENNA, Av. Libertador Bernardo O’Higgins 3363, 9170124, Santiago, ChileUniversidad Diego Portales, Ejército 441, Santiago, Chile; Centro para el Desarrollo de la Nanociencia y la Nanotecnología, CEDENNA, Av. Libertador Bernardo O’Higgins 3363, 9170124, Santiago, Chile; Corresponding author at: Universidad Diego Portales, Ejército 441, Santiago, Chile.An off-center shift of the magnetic hysteresis loop, usually known as exchange bias, develops in an asymmetric nanodisk due to the Dzyaloshinskii-Moriya (DM) interaction. Results exhibit the onset of bias in a system without material interfaces, originating from the relation between the chirality defined by the DM interaction and the geometry. In addition, programmable magnetization bias by the variation of an external field emerges as a possibility. Our simulations, carried out using Mumax3 code, also yield double hysteresis loops, evidencing a magnetization reversal driven by vortex nucleation and annihilation. Bias in a homogeneous nanodisk and its control seem promising for applications.http://www.sciencedirect.com/science/article/pii/S2211379723010392Dzyaloshinskii-Moriya (DM) interactionMagnetochiralityBiasAsymmetric nanoparticlesMagnetization reversal |
| spellingShingle | S. Castillo-Sepúlveda R.M. Corona M. Kiwi V.L. Carvalho-Santos D. Altbir Dzyaloshinskii-Moriya bias in a free-standing asymmetric homogeneous nanodisk Results in Physics Dzyaloshinskii-Moriya (DM) interaction Magnetochirality Bias Asymmetric nanoparticles Magnetization reversal |
| title | Dzyaloshinskii-Moriya bias in a free-standing asymmetric homogeneous nanodisk |
| title_full | Dzyaloshinskii-Moriya bias in a free-standing asymmetric homogeneous nanodisk |
| title_fullStr | Dzyaloshinskii-Moriya bias in a free-standing asymmetric homogeneous nanodisk |
| title_full_unstemmed | Dzyaloshinskii-Moriya bias in a free-standing asymmetric homogeneous nanodisk |
| title_short | Dzyaloshinskii-Moriya bias in a free-standing asymmetric homogeneous nanodisk |
| title_sort | dzyaloshinskii moriya bias in a free standing asymmetric homogeneous nanodisk |
| topic | Dzyaloshinskii-Moriya (DM) interaction Magnetochirality Bias Asymmetric nanoparticles Magnetization reversal |
| url | http://www.sciencedirect.com/science/article/pii/S2211379723010392 |
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