Magnetism Flashcards
1
Q
Diamagnetic
A
No unpaired electrons
2
Q
Paramagnetic
A
Has unpaired electrons
3
Q
Paramagnetic alignment
A
Random orientation
4
Q
Ferromagnetic alignment
A
Parallel so magnetism = sum of individual moments
5
Q
Antiferromagnetic alignment
A
Anti parallel arrangement, overall 0 magnetic moment
6
Q
Ferrimagnetic alignment
A
Anti parallel arrengement with unequal magnetic moments
7
Q
Magnetic susceptibility T dependence
A
At Curie temp, Tc, thermal disordering overcomes magnetic arrangements so ferromagnetic becomes paramagnetic
At Neel temp, Tn, thermal disordering overcomes magnetic arrangements so antiferromagnetic becomes paramagnetic
8
Q
Magnetic oxides
A
AB2O4 spinels
9
Q
Normal spinel structure
A
[A]tet[B2]octO4
10
Q
Inverse spinel structure
A
[B2]tet[A]octO4
