The answer has to do with how each individual material acts as an electric field. “As we grow and learn more about magnetism, we discover that the materials that we commonly think of as ‘magnetic’ actually are little more than electromagnetic fields,” Dr. C. James Youngblood, from the Department of Physics and Astronomy at Newcastle University and lead author on the research, explains in another blog post.
So a magnetic field can be found at or near any spot on any magnet, and if a magnet has enough energy, it can exert a force that pulls all other magnets and can even destroy them.
Youngblood and his team tested this idea with magnetic materials that didn’t behave as a field. They used the high-tension magnetism of iron oxide to show that magnetism was found when iron was present but had lost most of its energy — a state called a “super-cooled” state.
This state, or super-cooled iron (SHO) does not seem to be the kind of material that would naturally produce superconductivity, but Youngblood says “it might be a good enough state” for a magnet without any electrons or quarks, where he speculates superconductivity could occur.
The magnetism was found at the lowest possible temperature on the magnet and even at low temperatures, at 0.1 kelvin, the iron oxide had not cooled to 0.2 kelvin, the super-cooled state. In other words, the magnetic materials had gained power and lost energy when they cooled down to 0.2 kelvin.
So, does a super-cooled iron magnet simply lose energy and lose its magnetic properties, or could it be a new field?
The magnetic properties disappear at super-cooled iron, but the magnetic field stays. To test this idea, the team created a magnetic field by placing a 1-micron-diameter iron disk in an electric field, while the temperature of the magnetic field was constantly increased by 1 kelvin.
Because the disk could have many spins, the researchers could determine the total magnetic field strength. By adjusting the length of the disks’ magnetic poles, they compared the strength (in magnetic field strength per meter) to the magnetic field’s potential energy, which is the energy needed to create a net magnetic field in a magnetic material.
“The total magnetic field strength is less than the measured flux, or the potential energy. The actual magnetic
free energy machine, importance of free energy in living system, gibbs free energy, concept of free energy in biochemistry, free energy youtube