Table 1.

Characteristic magnetic length scales for the most relevant iron oxides [123][124][125]. Data for iron are included for comparison.

	K	A	MS	k	lex	Rsd	Rspm
	(J/m3)	(J/m)	(A/m)		(nm)	(nm)	(nm)
Maghemite	4.6×103	∼10−11	3.8×105	0.16	7.4	42.5	17.5
Magnetite	1.35×104	133×10−11	4.8×105	0.21	6.8	52.7	12.2
Iron	4.8×104	1.49×10−11	1.71×106	0.11	2.0	8.3	8.0