Corrigendum to “The magnetoelectric effect in LiFePO4 - Revisited” [Physica B 648 (2022), 414380]

Fogh, Ellen; Klemke, Bastian; Pagès, Alexandre; Li, Jiying; Vaknin, David; Rønnow, Henrik M.; Christensen, Niels Bech; Toft-Petersen, Rasmus

doi:10.1016/j.physb.2023.414745

Cited by 2 publications

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“…Our results for LiNi 0.8 Fe 0.2 PO 4 are shown in Fig. 3 and are compared to the ME response of the parent compounds, LiNiPO 4 19 and LiFePO 4 30 . Note that in the following analysis we assume space group Pnma although it was recently shown that LiFePO 4 may display a lower symmetry 30 .…”

Section: Resultsmentioning

confidence: 97%

“…3 and are compared to the ME response of the parent compounds, LiNiPO 4 19 and LiFePO 4 30 . Note that in the following analysis we assume space group Pnma although it was recently shown that LiFePO 4 may display a lower symmetry 30 . The pyrocurrent for LiNi 0.8 Fe 0.2 PO 4 for two orthogonal orientations of the electric poling field, E , and three directions of the magnetic field shows clear signatures of two ME phase transitions slightly below T 2 and T 1 , see Fig.…”

Section: Resultsmentioning

confidence: 99%

“…19 and that for LiFePO 4 is reprinted with permission from ref. 30 . Copyright (2023) by the American Physical Society.…”

Section: Resultsmentioning

confidence: 99%

“…Finally, in Fig. 3 e we probe tensor components that are by symmetry not allowed for LiNiPO 4 and very small for LiFePO 4 30 . Similarly, we observe α b b below T 2 while α a a is finite only below T 1 .…”

Section: Resultsmentioning

confidence: 99%

“…The quasi-static method 51 was used to perform pyrocurrent measurements with a Quantum Design PPMS at the Helmholtz-Zentrum Berlin. The custom-build insert allows for sample rotations with respect to the vertical magnetic field and thus enables probing off-diagonal ME tensor elements 30 , 52 . Plate-shaped LiNi 0.8 Fe 0.2 PO 4 single crystals with gold sputtered faces perpendicular to a and b , and sample thickness 0.5 and 0.9 mm, respectively, were used.…”

Section: Methodsmentioning

confidence: 99%

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Tuning magnetoelectricity in a mixed-anisotropy antiferromagnet

et al. 2023

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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 LiNi1−xFexPO4 are profoundly affected by partial substitution of Ni2+ ions with Fe2+ 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, LiNiPO4 and LiFePO4, 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.

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Section: Resultsmentioning

confidence: 97%

Section: Resultsmentioning

confidence: 99%

“…19 and that for LiFePO 4 is reprinted with permission from ref. 30 . Copyright (2023) by the American Physical Society.…”

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Tuning magnetoelectricity in a mixed-anisotropy antiferromagnet

et al. 2023

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Theoretical Study of the Magnetic and Optical Properties of Ion-Doped LiMPO4 (M = Fe, Ni, Co, Mn)

Apostolova,

Apostolov,

Wesselinowa

2024

Materials

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Using a microscopic model and Green’s function theory, we calculated the magnetization and band-gap energy in ion-doped LiMPO4 (LMPO), where M = Fe, Ni, Co, Mn. Ion doping, such as with Nb, Ti, or Al ions at the Li site, induces weak ferromagnetism in LiFePO4. Substituting Li with ions of a smaller radius, such as Nb, Ti, or Al, creates compressive strain, resulting in increased exchange interaction constants and a decreased band-gap energy, Eg, in the doped material. Notably, Nb ion doping at the Fe site leads to a more pronounced decrease in Eg compared to doping at the Li site, potentially enhancing conductivity. Similar trends in Eg reduction are observed across other LMPO4 compounds. Conversely, substituting ions with a larger ionic radius than Fe, such as Zn and Cd, causes an increase in Eg.

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Corrigendum to “The magnetoelectric effect in LiFePO4 - Revisited” [Physica B 648 (2022), 414380]

Cited by 2 publications

References 0 publications

Tuning magnetoelectricity in a mixed-anisotropy antiferromagnet

Tuning magnetoelectricity in a mixed-anisotropy antiferromagnet

Theoretical Study of the Magnetic and Optical Properties of Ion-Doped LiMPO4 (M = Fe, Ni, Co, Mn)

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