Tuning magnetoelectricity in a mixed-anisotropy antiferromagnet
Fuente:
arXiv
Saved in:
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , |
|---|---|
| Format: | Preprint |
| Published: |
2022
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866917889244659712 |
|---|---|
| author | Fogh, Ellen Klemke, Bastian Reehuis, Manfred Bourges, Philippe Niedermayer, Christof Holm-Dahlin, Sonja Zaharko, Oksana Schefer, Jürg Kristensen, Andreas B. Sørensen, Michael K. Paeckel, Sebastian Pedersen, Kasper S. Hansen, Rasmus E. Pages, Alexandre Moerner, Kimmie K. Meucci, Giulia Soh, Jian-Rui Bombardi, Alessandro Vaknin, David Rønnow, Henrik. M. Syljuåsen, Olav F. Christensen, Niels B. Toft-Petersen, Rasmus |
| author_facet | Fogh, Ellen Klemke, Bastian Reehuis, Manfred Bourges, Philippe Niedermayer, Christof Holm-Dahlin, Sonja Zaharko, Oksana Schefer, Jürg Kristensen, Andreas B. Sørensen, Michael K. Paeckel, Sebastian Pedersen, Kasper S. Hansen, Rasmus E. Pages, Alexandre Moerner, Kimmie K. Meucci, Giulia Soh, Jian-Rui Bombardi, Alessandro Vaknin, David Rønnow, Henrik. M. Syljuåsen, Olav F. Christensen, Niels B. Toft-Petersen, Rasmus |
| contents | Control of magnetization and electric polarization is attractive in relation to tailoring materials for data storage and devices such as sensors or antennae. In magnetoelectric materials, these degrees of freedom are closely coupled, allowing polarization to be controlled by a magnetic field, and magnetization by an electric field, but the magnitude of the effect remains a challenge in the case of single-phase magnetoelectrics for application. We demonstrate that the magnetoelectric properties of the mixed-anisotropy antiferromagnet LiNi$_{1-x}$Fe$_x$PO$_4$ are profoundly affected by replacing a fraction of the Ni$^{2+}$ ions with Fe$^{2+}$ on the transition metal site. This introduces random site-dependent single-ion anisotropy energies and causes a lowering of the magnetic symmetry of the system. In turn, magnetoelectric couplings that are symmetry-forbidden in the parent compounds, LiNiPO$_4$ and LiFePO$_4$, are unlocked and the dominant coupling is enhanced by two orders of magnitude. Our results demonstrate the potential of mixed-anisotropy magnets for tuning magnetoelectric properties. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2209_06702 |
| institution | arXiv |
| publishDate | 2022 |
| record_format | arxiv |
| spellingShingle | Tuning magnetoelectricity in a mixed-anisotropy antiferromagnet Fogh, Ellen Klemke, Bastian Reehuis, Manfred Bourges, Philippe Niedermayer, Christof Holm-Dahlin, Sonja Zaharko, Oksana Schefer, Jürg Kristensen, Andreas B. Sørensen, Michael K. Paeckel, Sebastian Pedersen, Kasper S. Hansen, Rasmus E. Pages, Alexandre Moerner, Kimmie K. Meucci, Giulia Soh, Jian-Rui Bombardi, Alessandro Vaknin, David Rønnow, Henrik. M. Syljuåsen, Olav F. Christensen, Niels B. Toft-Petersen, Rasmus Strongly Correlated Electrons Materials Science Control of magnetization and electric polarization is attractive in relation to tailoring materials for data storage and devices such as sensors or antennae. In magnetoelectric materials, these degrees of freedom are closely coupled, allowing polarization to be controlled by a magnetic field, and magnetization by an electric field, but the magnitude of the effect remains a challenge in the case of single-phase magnetoelectrics for application. We demonstrate that the magnetoelectric properties of the mixed-anisotropy antiferromagnet LiNi$_{1-x}$Fe$_x$PO$_4$ are profoundly affected by replacing a fraction of the Ni$^{2+}$ ions with Fe$^{2+}$ on the transition metal site. This introduces random site-dependent single-ion anisotropy energies and causes a lowering of the magnetic symmetry of the system. In turn, magnetoelectric couplings that are symmetry-forbidden in the parent compounds, LiNiPO$_4$ and LiFePO$_4$, are unlocked and the dominant coupling is enhanced by two orders of magnitude. Our results demonstrate the potential of mixed-anisotropy magnets for tuning magnetoelectric properties. |
| title | Tuning magnetoelectricity in a mixed-anisotropy antiferromagnet |
| topic | Strongly Correlated Electrons Materials Science |
| url | https://arxiv.org/abs/2209.06702 |