Details

Autor(en) / Beteiligte

• 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

Titel

Tuning magnetoelectricity in a mixed-anisotropy antiferromagnet

Ist Teil von

• Nature communications, 2023-06, Vol.14 (1), p.3408-3408, Article 3408

Ort / Verlag

England: Nature Publishing Group

Erscheinungsjahr

2023

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• 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 applications. We demonstrate that the magnetoelectric properties of the mixed-anisotropy antiferromagnet LiNi Fe PO are profoundly affected by partial substitution of Ni ions with Fe 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 and LiFePO , are unlocked and the dominant coupling is enhanced by almost two orders of magnitude. Our results demonstrate the potential of mixed-anisotropy magnets for tuning magnetoelectric properties.