An electric current passed through one will be spin-polarized. Barkhausen noise can be picked up by a wire loop, as they are discontinuously created by an external field. Some exotic types may be made from Heusler alloys or rare earth alloys like neodymium, but these are less practical because they lose their namesake property at a lower Curie temperature than ones made from cobalt, nickel, or iron, from which their name derives. FTP, name these objects that remain magnetized even in the absence
An electric current passed through one will be spin-polarized. Barkhausen noise can be picked up by a wire loop, as they are discontinuously created by an external field. Some exotic types may be made from Heusler alloys or rare earth alloys like neodymium, but these are less practical because they lose their namesake property at a lower Curie temperature than ones made from cobalt, nickel, or iron, from which their name derives. FTP, name these objects that remain magnetized even in the absence of an external magnetic field.
An electric current passed through one will be spin-polarized.
{Ferromagnet }(accept {permanent magnet;} prompt on magnet before “name”)