. 2017 Mar 23;16:36. doi: 10.1186/s12938-017-0327-x

Table 2.

Physical properties of potential magnetic particles used in hyperthermia

Material	Superparamagnetic critical diameter $D_{c r}$ (nm)	Domain magnetization $M_{d}$ (kA m⁻¹)	Anisotropy constant $K$ (kJ m⁻³)	Density $ρ$ (kg m⁻³)
Barium-ferrite	9^a	300^f	300–330^g	5280^g
Barium-ferrite	9^a	380^g	300–330^g	5280^g
Cobalt-ferrite	10^b	425^g	180–200^g	4907^g
Cobalt-ferrite	14^c		120^j	5290ⁿ
Iron	16^d	1707^d	48^d	7870^d
Iron	20^e	1707^d	48^d	7870^d
Iron-cobalt	16^b	1815^d	1.5^h	8031^d
Iron-cobalt	24^d	1790^h	15^d	8140^h
Iron-platinum	3^b	1140ⁱ	206^f	15,200^h
Iron-platinum	10^d		7000^k	15,200^h
Maghemite	31^b	414^g	4.7^l	4600^g
Maghemite	35^d		16^j	4600^g
Magnetite	21^d	446^g	23–41^g	5180^g
Magnetite	25^{b, c}		9^d	5180^g
Nickel-ferrite	28^c	301^c	−0.068^c	5380ⁿ
Nickel-ferrite	28^c	301^c	33^m	5380ⁿ

^aEstimated ( $D_{c r} \approx {(150 k_{B} T / π)}^{1 / 3}$ [150]), ^b [151], ^c [152], ^d [61], ^e [153], ^f [154], ^g [91], ^h [100], ⁱ [155], ^j [156], ^k [157], ^l [158], ^m [159], ⁿ [160]