Discovery of the soft electronic modes of the trimeron order in magnetite
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DOI: 10.1038/s41567-020-0823-y
Abstract: The Verwey transition in magnetite (Fe 3 O 4 ) is the first metal–insulator transition ever observed 1 and involves a concomitant structural rearrangement and charge–orbital ordering. Owing to the complex interplay of these intertwined… read more here.
Keywords: discovery soft; verwey transition; transition; trimeron order ... See more keywords
Anomalous electric transport across Verwey transition in nanocrystalline Fe3O4 thin films
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DOI: 10.1063/1.5058150
Abstract: Charge ordering (Fe+3/Fe+2) is a key concept in the Verwey transition of Fe3O4 because it frequently competes with functional properties (half-metallicity/ferromagnetism and structural transformation) and quantum confinement effect, especially at nanoscale dimensions. In this paper,… read more here.
Keywords: verwey transition; transition; annealed films; fe3o4 ... See more keywords
Studies of electrical and magnetic properties across the Verwey transition in epitaxial magnetite thin films
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DOI: 10.1063/1.5088670
Abstract: The magnetic and transport properties of magnetite (Fe3O4) films grown on isostructural substrates (MgAl2O4, MgGa2O4, and CoGa2O4), with varying degrees of lattice mismatches (3.8%, −1.4%, and −0.8%, respectively), have been investigated. A significant reduction in… read more here.
Keywords: temperature; verwey transition; transition; magnetic properties ... See more keywords
Energy domain versus time domain precursor fluctuations above the Verwey transition in magnetite
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DOI: 10.1103/physrevb.101.054303
Abstract: We study the dynamics and interactions of the critical fluctuations of the Verwey transition in magnetite (${\mathrm{Fe}}_{3}{\mathrm{O}}_{4}$) in the pretransition region by means of inelastic neutron scattering experiments on a natural single crystal. We find… read more here.
Keywords: verwey transition; transition magnetite; time; fluctuations verwey ... See more keywords
Magnetic hysteresis of 0.6–110 μm magnetites across the Verwey transition
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DOI: 10.1139/cjes-2018-0088
Abstract: We report saturation magnetization, Ms, saturation remanence, Mrs, coercive force, Hc, and remanence coercivity, Hcr, as a function of grain size, d, and temperature, T, for 0.6–135 μm magnetites. Five annealed and four unannealed samples… read more here.
Keywords: magnetic hysteresis; hysteresis; hysteresis 110; domain ... See more keywords