Multiferroic kinks and spin-flop transition in Ni2InSbO6 from first principles
Abstract Magnetoelectric multiferroics are key materials for next-generation spintronic devices due to their entangled magnetic and ferroelectric properties. Spiral multiferroics possess ferroelectric polarization and are particularly promising for electric control of magnetism and magnetic control...
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Nature Portfolio
2024-06-01
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| Series: | npj Spintronics |
| Online Access: | https://doi.org/10.1038/s44306-024-00020-9 |
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| author | Ryota Ono Igor Solovyev Sergey Artyukhin |
| author_facet | Ryota Ono Igor Solovyev Sergey Artyukhin |
| author_sort | Ryota Ono |
| collection | DOAJ |
| description | Abstract Magnetoelectric multiferroics are key materials for next-generation spintronic devices due to their entangled magnetic and ferroelectric properties. Spiral multiferroics possess ferroelectric polarization and are particularly promising for electric control of magnetism and magnetic control of ferroelectricity. In this work, we uncover long-period incommensurate states characterized by unique multiferroic kinks in corundum nickelate Ni2InSbO6, a member of a promising family of polar magnets. Utilizing a 2-orbital S = 1 model, we derive formulas for Heisenberg and anisotropic magnetic exchanges and magnetically-induced polarization, enabling their calculations from first principles. We use these parameters in Monte Carlo and Landau theory-based calculations to reproduce experimentally observed magnetic structures and polarization dependence on the magnetic field. We predict magnetic phase transitions between flat spiral, conical spiral, canted antiferromagnetic and ferromagnetic states under increasing magnetic fields. Kinks in the spiral phases repel each other through a Yukawa-like potential arising from exchange of massive magnons. We also find that suitably directed electric fields can be used to stabilize the ferromagnetic and spiral states. The findings open a new pathway to predictive first-principles modelling of multiferroics and will inspire experiments and technological applications based on multiferroic kinks. |
| format | Article |
| id | doaj-art-6b276d043702421185faaeb6c3a499ea |
| institution | DOAJ |
| issn | 2948-2119 |
| language | English |
| publishDate | 2024-06-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | npj Spintronics |
| spelling | doaj-art-6b276d043702421185faaeb6c3a499ea2025-08-20T02:59:18ZengNature Portfolionpj Spintronics2948-21192024-06-012111010.1038/s44306-024-00020-9Multiferroic kinks and spin-flop transition in Ni2InSbO6 from first principlesRyota Ono0Igor Solovyev1Sergey Artyukhin2Quantum Materials Theory, Italian Institute of TechnologyResearch Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS)Quantum Materials Theory, Italian Institute of TechnologyAbstract Magnetoelectric multiferroics are key materials for next-generation spintronic devices due to their entangled magnetic and ferroelectric properties. Spiral multiferroics possess ferroelectric polarization and are particularly promising for electric control of magnetism and magnetic control of ferroelectricity. In this work, we uncover long-period incommensurate states characterized by unique multiferroic kinks in corundum nickelate Ni2InSbO6, a member of a promising family of polar magnets. Utilizing a 2-orbital S = 1 model, we derive formulas for Heisenberg and anisotropic magnetic exchanges and magnetically-induced polarization, enabling their calculations from first principles. We use these parameters in Monte Carlo and Landau theory-based calculations to reproduce experimentally observed magnetic structures and polarization dependence on the magnetic field. We predict magnetic phase transitions between flat spiral, conical spiral, canted antiferromagnetic and ferromagnetic states under increasing magnetic fields. Kinks in the spiral phases repel each other through a Yukawa-like potential arising from exchange of massive magnons. We also find that suitably directed electric fields can be used to stabilize the ferromagnetic and spiral states. The findings open a new pathway to predictive first-principles modelling of multiferroics and will inspire experiments and technological applications based on multiferroic kinks.https://doi.org/10.1038/s44306-024-00020-9 |
| spellingShingle | Ryota Ono Igor Solovyev Sergey Artyukhin Multiferroic kinks and spin-flop transition in Ni2InSbO6 from first principles npj Spintronics |
| title | Multiferroic kinks and spin-flop transition in Ni2InSbO6 from first principles |
| title_full | Multiferroic kinks and spin-flop transition in Ni2InSbO6 from first principles |
| title_fullStr | Multiferroic kinks and spin-flop transition in Ni2InSbO6 from first principles |
| title_full_unstemmed | Multiferroic kinks and spin-flop transition in Ni2InSbO6 from first principles |
| title_short | Multiferroic kinks and spin-flop transition in Ni2InSbO6 from first principles |
| title_sort | multiferroic kinks and spin flop transition in ni2insbo6 from first principles |
| url | https://doi.org/10.1038/s44306-024-00020-9 |
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