Saturated paramagnetic and ferromagnetic

In summary, saturated paramagnetic materials have unpaired electrons and exhibit weak attraction to a magnetic field, while ferromagnetic materials have a large number of unpaired electrons and exhibit strong attraction to a magnetic field. In a magnetic field, saturated paramagnetic materials align their magnetic dipoles with the external field temporarily, while ferromagnetic materials retain their alignment even after the field is removed. Factors such as the number of unpaired electrons, crystal structure, and temperature can affect the magnetic properties of both types of materials. Saturated paramagnetic materials are commonly used in medical imaging, while ferromagnetic materials are used in electric motors, generators, and data storage devices. The Curie temperature, which is the temperature at which ferromagnetic materials
  • #1
jackychenp
28
0
Dear All,

I have a paramagnetic material, its magnetic moment will saturate at magnetic field of 30 T (all spins align in the field direction). So shall I treat the high field phase as a ferromagnetic phase when I do electronic calculations?
 
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  • #2
Yes, I guess so.

The distinction is that for a "real" ferromagnet, you cross a phase boundary somewhere.

For a saturated paramagnet, the magnetization curve is completely smooth and continuous.

For electronic structure calculations you probably don't care if the moments are aligned because of an external magnetic field (para), or because of an internal exchange field (ferro).
 

FAQ: Saturated paramagnetic and ferromagnetic

What is the difference between saturated paramagnetic and ferromagnetic materials?

Saturated paramagnetic materials have unpaired electrons and exhibit weak attraction to a magnetic field. Ferromagnetic materials have a large number of unpaired electrons and exhibit strong attraction to a magnetic field.

How do saturated paramagnetic and ferromagnetic materials behave in a magnetic field?

Saturated paramagnetic materials align their magnetic dipoles with the external magnetic field, but the alignment is not permanent. Ferromagnetic materials retain their alignment even after the external magnetic field is removed.

What factors affect the magnetic properties of saturated paramagnetic and ferromagnetic materials?

The number of unpaired electrons, crystal structure, and temperature can all affect the magnetic properties of saturated paramagnetic and ferromagnetic materials.

What are some common applications of saturated paramagnetic and ferromagnetic materials?

Saturated paramagnetic materials are used in medical imaging, such as MRI machines, due to their weak attraction to magnetic fields. Ferromagnetic materials are used in electric motors, generators, and data storage devices due to their strong attraction to magnetic fields.

How does the Curie temperature affect the magnetic behavior of saturated paramagnetic and ferromagnetic materials?

The Curie temperature is the temperature at which ferromagnetic materials lose their magnetic properties. Above this temperature, ferromagnetic materials behave like paramagnetic materials. The Curie temperature can also affect the strength of the magnetic field that a ferromagnetic material can produce.

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