Magnetic order is a common phenomenon in three - dimensional materials, such
as ferromagnetic order in iron bar magnets, where the magnetic moments on all iron atoms point in the same direction.
Not exact matches
Due to its universal character, this theory is applicable to many fields of physics such
as, e.g., the observation of the transition from metals to superconductors or the transition from
ferromagnetic to paramagnetic systems.
The discovery, to be published April 26 in the journal Nature, could have major implications for a wide range of applications that rely upon
ferromagnetic materials, such
as nanoscale memory, spintronic devices, and magnetic sensors.
Researchers from North Carolina State University have solved a long - standing materials science problem, making it possible to create new semiconductor devices using zinc oxide (ZnO)-- including efficient ultraviolet (UV) lasers and LED devices for use in sensors and drinking water treatment,
as well
as new
ferromagnetic devices.
Yet, despite their widespread use, at room temperature only three elements are
ferromagnetic — meaning they have high susceptibility to becoming and remaining magnetic in the absence of a field,
as opposed to paramagnetic substances, which are only weakly attracted to the poles of a magnet and do not retain any magnetism on their own.
In a
ferromagnetic material, such
as iron or nickel, the randomness of the electron spins at high temperatures makes the material symmetric in all directions.
Sam Lewitt's installation entitled Fluid Employment (2012) made from poured
ferromagnetic liquid elucidates the medium's immaculate traits in its imminent usage in electronic devices such
as hard drives.