Abstract:
:Novel-morphological Fe3O4 nanosheets with magnetochromatic property have been prepared by a modified solvothermal method. Such nanosheets could form one-dimension photonic crystal under an external magnetic field. The Fe3O4 nanosheets suspension could strongly diffract visible light and display varied colors with changing the intensity of the magnetic field. The photonic response is rapid, fully reversible and widely tunable in the entire visible spectrum. Excellent magnetic properties of these Fe3O4 nanosheets are exhibited with a high saturation magnetization (82.1 emu/g), low remanence (13.85 emu/g) and low coercive force (75.95 Oe). The amount of the solvent diethylene glycol (DEG) plays a key role in the formation of the sheet-shaped morphology. When the ratio of the DEG reaches 100%, the growing of the crystal plane (111) of Fe3O4 is inhibited and the sheet-like Fe3O4 crystals are formed.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Zhuang L,Zhang W,Zhao Y,Shen H,Lin H,Liang Jdoi
10.1038/srep09320subject
Has Abstractpub_date
2015-03-23 00:00:00pages
9320issn
2045-2322pii
srep09320journal_volume
5pub_type
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