Iron screws and other so-called ferromagnetic materials are made up of atoms with electrons that act like little magnets. Normally, the orientations of the magnets are aligned within one region of the ...

Scientists have shown that Barkhausen noise can be produced not only through traditional, or classical means, but through quantum mechanical effects. The research represents an advance in fundamental ...

(Nanowerk News) Thanks to the tenacity of star physics students and the new tools of nanotechnology, a University of Alberta physics team has cracked the code to a magnetic mystery that scientists ...

Listen up: Team member Christopher Simon holds a crystal of lithium holmium yttrium fluoride, a material that produces quantum Barkhausen noise. (Courtesy: Lance Hayashida/Caltech) Researchers in the ...

Barkhausen criticality represents the phenomenon wherein ferromagnetic materials exhibit sudden, discrete jumps in magnetisation as domain walls overcome local pinning sites, resulting in avalanches ...