Trevor P. Almeida

TL;DR: In this article, the authors argue that the pseudo-single domain (PSD) does not describe the relevant physical processes, which have been documented extensively using three-dimensional micromagnetic modeling, and by parallel research in materials science and solid-state physics.

TL;DR: In this article, a process map for the hydrothermal synthesis of single crystalline α-Fe2O3 nanorods from aqueous FeCl3 is presented, as a function of temperature, time, and phosphate concentration.

TL;DR: This study has developed a thermally activated numerical micromagnetic model that can quantitatively determine the energy barriers between stable states in nonuniform magnetic particles on geological timescales and finds that, contrary to previously published theories, such non uniformly magnetized particles provide greater magnetic stability than their uniformly magnetized counterparts.

TL;DR: In this paper, the effects of oxidation on the magnetization of individual nanoscale Fe3O4 particles as they transform towards g-Fe2O3 were investigated using the complementary techniques of environmental transmission electron microscopy and off-axis electron holography.

TL;DR: Investigation of the quenched reaction products provided evidence for PO₄³⁻ absorption on the α-Fe₂O₃ nanoparticles in the form of mono or bi-dentate (bridging) surface complexes on surfaces normal and parallel to the crystallographic α- Fe₁O ₃ c-axis, respectively.