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hokhani
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- TL;DR Summary
- Why the hard ferromagnet can retain its magnetic dipole allignment while the soft one can not?
In the ferromagnetic materials not only the atoms have magnetic dipoles but also the dipoles are aligned well in different domains. However, what is the differnce berween atomic structure of a soft ferromagnet like iron and a hard ferromagnet like a bar magnet? My first guess is that the atomic dipoles might be stronger and more dense in the hard ferromagnets so that the exchange interaction between the dipoles don't let the external magnetic field affect them as easily as soft ferromagnet. Could anyone please explain exactly that? Any help is appreciated.