0
   

Paramagnetism

 
 
Reply Fri 11 May, 2007 01:28 pm
Hello. Can someone briefly explain how paramagnetism works and what sets it apart from other forms of magnetism (ferromagnetism, electromagnetism, etc.)?
  • Topic Stats
  • Top Replies
  • Link to this Topic
Type: Discussion • Score: 0 • Views: 1,195 • Replies: 3
No top replies

 
JGoldman10
 
  1  
Reply Sat 12 May, 2007 04:11 am
reply to all posters
Do paramagnets only work in the presence of a magnetic field?
How is superparamagnetism different from paramagnetism?
0 Replies
 
farmerman
 
  1  
Reply Sat 12 May, 2007 04:45 am
Paramagnetism means that the substance merely has a partially positive magnetic susceptibility and partially aligns its structure wrt an applied magnetic field, but itself has no spontaneous magnetic oer.

We use it in field magnetometry to map deposits of iron containing minerals that will have a partial susceptibility. Superparamag just means that the internal particles (which are ferrimagnetic) will respond and relax according to a hysteresis curve(the mag moments are constantly fluctuating in accordance with the substance). The use of this(in my field at least) is in remnant field paleo- magnetic investigations
0 Replies
 
Brandon9000
 
  1  
Reply Sat 12 May, 2007 06:05 am
Paramegnetic materials are only magnetic in the presence of an external field. They do not retain their magnetism when the external field is removed.
0 Replies
 
 

Related Topics

Evolution 101 - Discussion by gungasnake
Typing Equations on a PC - Discussion by Brandon9000
The Future of Artificial Intelligence - Discussion by Brandon9000
The well known Mind vs Brain. - Discussion by crayon851
Scientists Offer Proof of 'Dark Matter' - Discussion by oralloy
Blue Saturn - Discussion by oralloy
Bald Eagle-DDT Myth Still Flying High - Discussion by gungasnake
DDT: A Weapon of Mass Survival - Discussion by gungasnake
 
  1. Forums
  2. » Paramagnetism
Copyright © 2021 MadLab, LLC :: Terms of Service :: Privacy Policy :: Page generated in 0.04 seconds on 10/24/2021 at 04:00:42