We build micromagnetic models to investigate the magnetic properties of biogenic magnetite–
a common type of magnetic mineral that is responsible for recording a wide range of …

Micromagnetic calculations relevant to paleomagnetism have generally focused on ideal
shapes such as spheres and cubes. However, oxide grains that occur naturally in rocks …

Magnetotactic bacteria (MTB) preserved in sediments (magnetofossils) are highly sensitive
to environmental and climatic forcing and can therefore be used as an easy-to-measure …

Giant magnetofossils have exceptionally large grain sizes and peculiar morphologies
compared to conventional biogenic magnetite nanoparticles. The origin of these unusual …

Interpretations of paleomagnetic observations assume that naturally occurring magnetic
particles can retain their primary magnetic recording over billions of years. The ability to …

Single‐domain magnetite particles produced by magnetotactic bacteria (magnetosomes)
and aligned in chains are of great interest in the biosciences and geosciences. Here, we …

Magnetotactic bacteria (MTB) produce single‐stranded or multi‐stranded chains of magnetic
nanoparticles that contribute to the magnetization of sediments and rocks. Their magnetic …

Magnetofossils are magnetic nanoparticles that represent the fossil remains of
microorganisms that biomineralize magnetic minerals in a genetically controlled manner …

High resolution three dimensional models are presented of cubic grains of magnetite in the
grain size range 0.03 μm to 4.0 μm, achieved using a resolution of up to 262,144 elements …

Magnetic measurements of samples with precisely controlled magnetic mineralogy, grain
size, and interparticle spacing are needed to provide crucial experimental rock magnetic …