A bubbly new way to detect the magnetic fields of nanometer-scale particles

As if they were bubbles expanding in a just-opened bottle of champagne, tiny circular regions of magnetism can be rapidly enlarged to provide a precise method of measuring the magnetic properties of nanoparticles.

from Nanotechnology News - Nanoscience, Nanotechnolgy, Nanotech News http://bit.ly/31lrq8o