Magnetism and the trimeron bond

JP Attfield - Chemistry of Materials, 2022 - ACS Publications
A review of progress in understanding the Verwey transition in magnetite (Fe3O4) over the
past decade is presented. This electronic and structural transition at TV≈ 125 K was …

Density functional theory study of local environment effects on oxygen vacancy properties in magnetite

S Srivastava, BP Uberuaga, M Asta - The Journal of Physical …, 2023 - ACS Publications
Density functional theory is employed to compute the properties of oxygen vacancies in the
low-temperature monoclinic phase of magnetite (Fe3O4). A focus is placed on …

Frenkel pair formation energy for cubic Fe3O4 in DFT+ U calculations

MI Shutikova, VV Stegailov - Journal of Physics: Condensed …, 2022 - iopscience.iop.org
The cubic phase of magnetite is stabilized above the Verwey transition temperature of about
120 K via a complex electron–phonon interaction that is still not very well understood. In this …

[HTML][HTML] Evaluating the versatility of stainless steel flakes and magnetite powder as polyvalent additives for wood paints

M Calovi, S Rossi - Journal of Materials Research and Technology, 2024 - Elsevier
The objective of this study is to evaluate how various fillers, specifically stainless steel flakes
and magnetite powder, affect the visual attributes, durability and versatility of a water-based …

Magnetization switching of single magnetite nanoparticles monitored optically

S Adhikari, Y Wang, P Spaeth, F Scalerandi… - Nano Letters, 2024 - ACS Publications
Magnetic nanomaterials record information as fast as picoseconds in computer memories
but retain it for millions of years in ancient rocks. This exceedingly broad range of times is …

Oxidation-state dynamics and emerging patterns in magnetite

E Gürsoy, GB Vonbun-Feldbauer… - The Journal of Physical …, 2023 - ACS Publications
Magnetite is an important mineral with many interesting applications related to its magnetic,
electrical, and thermal properties. Typically studied by electronic structure calculations …

[HTML][HTML] Study of Ammonia Adsorption on Magnetite Surfaces with Molecular Dynamics Simulations

N Ivanova, V Karastoyanov, I Betova, M Bojinov - Molecules, 2024 - mdpi.com
The present study proposes an atomistic molecular dynamics model system of a magnetite
(Fe3O4){111} surface. The effect of temperature on the adsorption process of ammonia …

Impact of hydrostatic pressure, nonstoichiometry, and doping on trimeron lattice excitations in magnetite during axis switching

T Kołodziej, J Piętosa, R Puźniak, A Wiśniewski, G Król… - Physical Review B, 2023 - APS
Trimeron lattice excitations in single crystalline magnetite, in the form of c axis switching (ie,
the reorganization of the lattice caused by an external magnetic field) at temperatures below …

[HTML][HTML] Impact of chemical segregation on magnetic anisotropy of iron oxide films

K Pitala, JM Ablett, A Szkudlarek, K Kollbek… - Journal of Magnetism …, 2022 - Elsevier
Texture-induced magnetic anisotropy is realized in iron oxide thin films deposited at room
temperature onto Si (1 0 0) substrates using reactive magnetron sputtering of a Fe 2 O 3 …

[PDF][PDF] Probing magnetite with X-ray standing waves: a high-resolution Fe K-edge spectroscopy study

F Kivelä - 2022 - helda.helsinki.fi
All matter is made up of tiny, indivisible particles called atoms–a term which simply means
“indivisible”†. This idea is recorded as being first presented by the Ancient Greek scholar …