Symmetry analysis of magnetic structures on the microscopic and macroscopic methods of E.F. BERTAUT

Fruchart, D.

doi:10.1051/epjconf/20122200003

Cited by 2 publications

(1 citation statement)

References 27 publications

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“…These positions are then used to define the basis vectors for each IR to better understand the charge of the vector. Bertaut’s method assigns each of the four basis vectors a letter to describe the vector pattern: G = (↑↓↑↓), C = (↑↑↓↓), A = (↑↓↓↑), and F = (↑↑↑↑). − Take Γ 4 – , for example; the basis vector A y indicates that M1 and M4 are spin up while M2 and M3 are spin down, and the subscript indicates that the magnetic moment points in the y -direction (which is the crystallographic b -axis). These mode labels help visualize the magnetic unit cell.…”

Section: Resultsmentioning

confidence: 99%

Tuning Magnetic Symmetry and Properties in the Olivine Series Li_1–xFe_xMn_1–xPO₄ through Selective Delithiation

et al. 2022

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We present the first in-depth study of the nuclear and magnetic structures of the fully lithiated LiFe x Mn 1−x PO 4 solid solutions as well as the partially delithiated Li 1−x Fe x Mn 1−x PO 4 series using neutron powder diffraction. By using a weak oxidizing solution that only oxidizes Fe 2+ , we find that lithium can be removed from these olivines in a stepwise manner. Representational analysis was performed on the observed magnetic reflections and found that the lithiated solid solutions order in the magnetic space group Pnma′, which is identical to triphylite (LiFePO 4 ). We report that, even when removing 20% of the lithium from the hcp lattice, the magnetic structure changes and multiple magnetic contributions are needed to fully encompass the observed magnetic order. We find that the partially delithiated x = 0.2 and 0.3 have a magnetic structure P2 1 ′/n11, and when x surpasses 0.3, the magnetic structure changes to P2 1 2 1 2 1 . We give a detailed report on the effect of delithiation on magnetic order, bond distances/angles, and the super-and supersuperexchange interactions in the material. The symmetries of the magnetic order of these solid solutions are then discussed with regard to their potential as ferrotoroidic candidates.

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Section: Resultsmentioning

confidence: 99%

Tuning Magnetic Symmetry and Properties in the Olivine Series Li_1–xFe_xMn_1–xPO₄ through Selective Delithiation

et al. 2022

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Spin configurations on a decorated square lattice

Gulistan¹,

Mert²

2016

AIP Conference Proceedings

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Symmetry analysis of magnetic structures on the microscopic and macroscopic methods of E.F. BERTAUT

Cited by 2 publications

References 27 publications

Tuning Magnetic Symmetry and Properties in the Olivine Series Li_1–xFe_xMn_1–xPO₄ through Selective Delithiation

Tuning Magnetic Symmetry and Properties in the Olivine Series Li_1–xFe_xMn_1–xPO₄ through Selective Delithiation

Spin configurations on a decorated square lattice

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Symmetry analysis of magnetic structures on the microscopic and macroscopic methods of E.F. BERTAUT

Cited by 2 publications

References 27 publications

Tuning Magnetic Symmetry and Properties in the Olivine Series Li1–xFexMn1–xPO4 through Selective Delithiation

Tuning Magnetic Symmetry and Properties in the Olivine Series Li1–xFexMn1–xPO4 through Selective Delithiation

Spin configurations on a decorated square lattice

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Tuning Magnetic Symmetry and Properties in the Olivine Series Li_1–xFe_xMn_1–xPO₄ through Selective Delithiation

Tuning Magnetic Symmetry and Properties in the Olivine Series Li_1–xFe_xMn_1–xPO₄ through Selective Delithiation