Magnetolattice coupling, magnetic frustration, and magnetoelectric effect in the Cr-doped 
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 multiferroic material and their correlation with structural phase transitions

Bera, Ganesh; Surampalli, Akash; Mishra, Aradhya; Mal, Priyanath; Reddy, ‬V. Raghavendra; Banerjee, A.; Sagdeo, Archna; Das, P. K.; Turpu, G. R.

doi:10.1103/physrevb.100.014436

Cited by 13 publications

(12 citation statements)

References 67 publications

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“…For the triclinic−monoclinic FeVO 4 -I′-to-FeVO 4 -II′ transition, there is no detectable volume collapse. For FeVO 4 -I′ at 4.47(4) GPa, the unit-cell volume per formula unit is 68.218(3) Å 3 , and for FeVO 4 -II′ at 4.30(4) GPa, it is 68.15(1) Å 3 . After the second transition, we observed the FeVO 4 -II′ phase also at 5.30(4) GPa.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

“…2 In particular, FeVO 4 is a multiferroic material, considered for the development of next-generation memory devices. 3 The thermal and electrical conductivity, mechanical strength, chemical stability, and electronic band gap of FeVO 4 also make it suitable for the development of electrodes of low-cost energystorage devices, such as supercapacitors. 4 They also make it a promising anode material for potassium-ion batteries.…”

Section: ■ Introductionmentioning

confidence: 99%

“…As a consequence, FeVO 4 is being considered as a dream material for developing multiple noncontaminant technologies . In particular, FeVO 4 is a multiferroic material, considered for the development of next-generation memory devices . The thermal and electrical conductivity, mechanical strength, chemical stability, and electronic band gap of FeVO 4 also make it suitable for the development of electrodes of low-cost energy-storage devices, such as supercapacitors .…”

Section: Introductionmentioning

confidence: 99%

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Precise Characterization of the Rich Structural Landscape Induced by Pressure in Multifunctional FeVO₄

et al. 2020

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We have studied the high-pressure behavior of FeVO 4 by means of single-crystal X-ray diffraction (XRD) and density functional theory (DFT) calculations. We have found that the structural sequence of FeVO 4 is different from that previously assumed. In particular, we have discovered a new high-pressure phase at 2.11(4) GPa (FeVO 4 -I′), which was not detected by previous powder XRD studies. We have determined that FeVO 4 , under compression (at room temperature), first transforms at 2.11(4) GPa from the ambient-pressure triclinic structure (FeVO 4 -I) to a second previously unknown triclinic structure (FeVO 4 -I′), which experiences a subsequent phase transition at 4.80(4) GPa to a monoclinic structure (FeVO 4 -II′), which was also previously detected in powder XRD experiments. Single-crystal XRD has enabled these novel findings as well as an accurate determination of the crystal structure of FeVO 4 polymorphs under high-pressure conditions. The crystal structure of all polymorphs has been accurately solved at all measured pressures. The pressure dependence of the unit-cell parameters and polyhedral coordination have been obtained and are discussed. The room-temperature equation of state and the principal axes of the isothermal compressibility tensor of FeVO 4 -I and FeVO 4 -I′ have also been determined. The structural phase transition observed here between these two triclinic structures at 2.11(4) GPa implies abrupt coordination polyhedra modifications, including coordination number changes. DFT calculations support the conclusions extracted from our experiments.

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Section: ■ Results and Discussionmentioning

confidence: 99%

Section: ■ Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Precise Characterization of the Rich Structural Landscape Induced by Pressure in Multifunctional FeVO₄

et al. 2020

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“…Cr substitutions into FeVO 4 as well as the converse Fe substitutions into CrVO 4 have been shown to exhibit composition-tuned band edge positions [28]. The complex composition dependence on electronic structure is emblematic of the broader family of M +3 VO 4 orthovanadates [29], which exhibit complex composition-dependent crystal structure, cation ordering, and magnetic ordering with different transition metals and mixtures thereof on the M +3 sublattice [30][31][32][33]. Mixed phase iron bismuth vanadate compound has been demonstrated to maintain good mobility of BiVO 4 while extending visible light absorption by mixing FeVO 4 with BiVO 4 [22,34].…”

Section: Introductionmentioning

confidence: 99%

High throughput discovery of enhanced visible photoactivity in Fe–Cr vanadate solar fuels photoanodes

Zhou

Guevarra²,

Gregoire³

2022

J. Phys. Energy

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Metal oxide solar absorbers are well suited for photoelectrochemical applications where requisite properties include stability in highly oxidizing environments, in addition to solar energy conversion. Metal vanadates are of particular interest due to their relatively low band gap energies compared to traditional, wide-gap photocatalysts. Concerted efforts on BiVO4-based photoanodes have revealed multiple avenues for improving the solar conversion efficiencies for photon energies above 2.5 eV but have not addressed the ultimate performance limitations from the undesirably high band gap energy. Fe and Cr vanadates have a lower band gap and thus a higher potential solar conversion efficiency, although to-date the absorbed 2-2.5 eV photons are not effectively converted to the desired anodic photocurrent. By using combinatorial synthesis and high throughput screening, we demonstrate that cation substitutions with the monoclinic MVO4 phase (M=Cr,Fe) improves the utilization of photons in this energy range. Given the portfolio of photoanode improvement techniques available, we suggest optimization of (Cr0.5Fe0.5)VO4-based photoanodes as a promising path for enable solar fuel technologies.

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“…Possibilities of utilizing electric field to control the magnetization or the other way around are certainly of great interest for device applications [1][2][3][4]. The ME effect has been explored in various materials, including antiferromagnetic systems [5,6], multiferroic composites [7,8], and topological insulators [9][10][11], among others. From a microscopic point of view, contributions to the ME may originate from the electronic spin and/or from its orbital angular momentum (OAM) [12].…”

Section: Introductionmentioning

confidence: 99%

Orbital magnetoelectric effect in zigzag nanoribbons of p -band systems

et al. 2021

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Profiles of the spin and orbital angular momentum accumulations induced by a longitudinally applied electric field are explored in nanoribbons of p-band systems with a honeycomb lattice. We show that nanoribbons with zigzag borders can exhibit orbital magnetoelectric effects. More specifically, we have found that purely orbital magnetisation may be induced in these systems by means of this external electric field. The effect is rather general and may occur in other twodimensional multi-orbital materials. Here, it requires the presence of both spin-orbit interaction and sub-lattice symmetry breaking to manifest.

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Magnetolattice coupling, magnetic frustration, and magnetoelectric effect in the Cr-doped FeVO4 multiferroic material and their correlation with structural phase transitions

Cited by 13 publications

References 67 publications

Precise Characterization of the Rich Structural Landscape Induced by Pressure in Multifunctional FeVO₄

Precise Characterization of the Rich Structural Landscape Induced by Pressure in Multifunctional FeVO₄

High throughput discovery of enhanced visible photoactivity in Fe–Cr vanadate solar fuels photoanodes

Orbital magnetoelectric effect in zigzag nanoribbons of p -band systems

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Magnetolattice coupling, magnetic frustration, and magnetoelectric effect in the Cr-doped FeVO4 multiferroic material and their correlation with structural phase transitions

Cited by 13 publications

References 67 publications

Precise Characterization of the Rich Structural Landscape Induced by Pressure in Multifunctional FeVO4

Precise Characterization of the Rich Structural Landscape Induced by Pressure in Multifunctional FeVO4

High throughput discovery of enhanced visible photoactivity in Fe–Cr vanadate solar fuels photoanodes

Orbital magnetoelectric effect in zigzag nanoribbons of p -band systems

Contact Info

Product

Resources

About

Precise Characterization of the Rich Structural Landscape Induced by Pressure in Multifunctional FeVO₄

Precise Characterization of the Rich Structural Landscape Induced by Pressure in Multifunctional FeVO₄