Nitride-mediated epitaxy of CoSi2 on Si(001)

10.1063/1.1555708Applied Physics Letters82121833-1835APPL

Magnetic microstructure of iron sulfide crystals in magnetotactic bacteria from off-axis electron holography

Transmission electron microscopy, off-axis electron holography and energy-selected imaging were used to study the crystallography, morphology, and magnetic microstructure of nanoscale greigite (Fe3S4) magnetosomes in magnetotactic bacteria from a sulfidic habitat. The greigite magnetosomes were organized in chains, but were less ordered than magnetite magnetosomes in other bacteria. Nevertheless, the magnetosomes comprise a permanent magnetic dipole, sufficient for magnetotaxis