Biomedical Engineering Reference
In-Depth Information
FIGURE 17.2
Regimes of magnetic behavior and mechanisms of heat generation. Values for single-domain critical diameters taken from:
a
Gubin
2009,
b
Krishnan 2010, and
c
Lu, Salabas, and Schüth 2007. Values for superparamagnetic critical diameters calculated from properties in:
d
Rosens-
weig 2002,
e
O'Handley 2000,
f
fKline et al. 2009, and
g
Maenosono and Saita 2006.
(a)
(b)
M
M
H
1
H
2
H
3
H
a
H
a
H
3
< H
2
< H
1
Loop 1
Loop 2
FIGURE 17.3
Example hysteresis loops adapted from data for magnetite powder in Hergt et al. (2002), demonstrating differences in loops based
on material (a) and applied field strength (b).
