Synthesis and magnetic properties of LiFePO4 substitution magnesium

Choi, Hyunkyung; Kim, Min Ji; Hahn, Eun-Joo; Kim, Sam Jin

doi:10.1016/j.jmmm.2017.02.009

Cited by 3 publications

(1 citation statement)

References 16 publications

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“…The LiMPO 4 orthophosphates crystallize in the olivine structure (space group Pnma) and are characterized by antiferromagnetic (AFM) ordering [22][23][24][25][26]. Except for the LiNiPO 4 , the other LiMPO 4 compounds undergo one spontaneous second order phase transition from a paramagnetic state to a commensurate antiferromagnetic state.…”

Section: Introductionmentioning

confidence: 99%

Magnetic phase transitions in the LiNi_0.9 M _0.1PO₄ (M = Mn, Co) single crystals

Semkin¹,

Urusova²,

Beskrovnyĭ³

et al. 2022

Phys. Scr.

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The LiNiPO4, LiNi0.9Mn0.1PO4, and LiNi0.9Co0.1PO4 single crystals are studied with heat capacity and neutron diffraction measurements over the temperature interval (10–30) K. Two peaks are observed on the temperature dependence of heat capacity for LiNiPO4, and LiNi0.9Co0.1PO4 samples. One peak indicates the first order phase transition from an antiferromagnetic commensurate (C) structure to an incommensurate (IC) one upon heating. According to neutron diffraction, in LiNiPO4 the IC ordering is described by the propagation vector k = 2π/b(0, 0.080, 0) at the Néel temperature T N = 20.8 K, and k = 2π/b(0, 0.098, 0) at T N = 20.2(1) K for LiNi0.9Co0.1PO4. A further increase in temperature leads to the second order phase transition to a paramagnetic state at critical temperature T IC = 21.7 K and 21.1 K for LiNiPO4 and LiNi0.9Co0.1PO4, respectively. The C and IC phases coexist over the temperature interval (20.6–20.8) K and (20.2–21.2) K in LiNiPO4 and LiNi0.9Co0.1PO4, respectively. In the LiNi0.9Mn0.1PO4 the magnetic phase transition occurs at T N = 22.7 K, but a magnetic scattering is observed up to 24.6 K.

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Section: Introductionmentioning

confidence: 99%

Magnetic phase transitions in the LiNi_0.9 M _0.1PO₄ (M = Mn, Co) single crystals

Semkin¹,

Urusova²,

Beskrovnyĭ³

et al. 2022

Phys. Scr.

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Structural evidence for Mg-doped LiFePO4 electrode polarisation in commercial Li-ion batteries

Goonetilleke

Faulkner²,

Peterson

et al. 2018

Journal of Power Sources

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Magnetic properties of mixed sodium-lithium iron fluorophosphate NaLiFePO4F cathode material

2018

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Mixed sodium-lithium iron fluorophosphates NaLiFePO4F was synthesized by solid-state route. The crystal and magnetic properties were investigated by X-ray diffraction (XRD) measurement, vibrating sample magnetometer (VSM), and Mössbauer spectroscopy. The crystal structure of NaLiFePO4F was determined to be orthorhombic with space group of Pnma. The cell parameters of NaLiFePO4F are as follows: a0 = 10.9661 Å, b0 = 6.3693 Å, c0 = 11.4342 Å, and V = 798.6377 Å3. The temperature-dependence of the zero-field-cooled (ZFC) and field-cooled (FC) curves was examined by VSM at 100 Oe from 4.2 to 295 K. We determined the Néel temperature (TN = 22 K) and spin reorientation temperature (TS = 13 K). The Mössbauer spectra of NaLiFePO4F were taken at various temperatures ranging from 4.2 to 295 K. At below TS, the electric quadrupole splitting (ΔEQ) decreased and magnetic hyperfine field (Hhf) increased with decrease temperature due to spin-orbit coupling.

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Synthesis and magnetic properties of LiFePO4 substitution magnesium

Cited by 3 publications

References 16 publications

Magnetic phase transitions in the LiNi_0.9 M _0.1PO₄ (M = Mn, Co) single crystals

Magnetic phase transitions in the LiNi_0.9 M _0.1PO₄ (M = Mn, Co) single crystals

Structural evidence for Mg-doped LiFePO4 electrode polarisation in commercial Li-ion batteries

Magnetic properties of mixed sodium-lithium iron fluorophosphate NaLiFePO4F cathode material

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Synthesis and magnetic properties of LiFePO4 substitution magnesium

Cited by 3 publications

References 16 publications

Magnetic phase transitions in the LiNi0.9 M 0.1PO4 (M = Mn, Co) single crystals

Magnetic phase transitions in the LiNi0.9 M 0.1PO4 (M = Mn, Co) single crystals

Structural evidence for Mg-doped LiFePO4 electrode polarisation in commercial Li-ion batteries

Magnetic properties of mixed sodium-lithium iron fluorophosphate NaLiFePO4F cathode material

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Product

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Magnetic phase transitions in the LiNi_0.9 M _0.1PO₄ (M = Mn, Co) single crystals

Magnetic phase transitions in the LiNi_0.9 M _0.1PO₄ (M = Mn, Co) single crystals