image: This is a high magnification electron microscope image and magnetic induction map of a vortex structure within a magnetite grain. This material relates to a paper that appeared in the April 15, issue of Science Advances, published by AAAS. The paper, by T.P. Almeida at Imperial College London in London, UK, and colleagues was titled, "Direct visualization of the thermomagnetic behaviour of pseudo-single-domain magnetite particles." view more
Credit: Imperial College London