Table 1
Atomic spacing observed for MNs as synthesized and the standard atomic spacing for Fe3O4along with their respective hkl indexes from the PDF database
Sl. no.	1	2	3	4	5	6
d-value	2.96	2.52	2.10	1.70	1.61	1.48
Fe3O4	2.97	2.53	2.10	1.71	1.62	1.48
(hkl)	220	311	400	422	511	440

Babu and Dhamodharan Nanoscale Research Letters 2008 3:109   doi:10.1186/1556-276X-3-109