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The origin of magnetism lies in the orbital and spin motions of electrons and how the electrons interact with one another. The best way to introduce the different types of magnetism is to describe how materials respond to magnetic fields. This may be surprising to some, but all matter is magnetic. It's just that some materials are much more magnetic than others. The main distinction is that in some materials there is no collective interaction of atomic magnetic moments, whereas in other materials there is a very strong interaction between atomic moments.
Such materials could have a variety of applications because of their unusual physical and magnetic properties, Thompson said. They are "soft" magnetically, meaning that it's very easy to change the magnetic orientation of the material. This is a highly desirable characteristic for the cores of transformers, for example, which must switch their magnetic orientation dozens of times per second. Transformers made from metallic glasses could potentially greatly reduce the amount of electricity wasted as excess heat in conventional transformers, reducing the need for new generating plants.
for anyone that have lots of knowledge about electromagnet please pleaseee helppp me.
the main purpose is to make electromagnet that block magnetic field of a natural magnet in a specific area only, so the electromagnet must not be made with something that attract magnet or at lease have very little magnet influence capacity. since the best way to block magnet field is to counter the the pole with the same pole ( U to U or S to S ), or is there any other way to block natural magnet field completely beside using the same pole direction?