Publication Date:
2015-02-14
Description:
The microstructure and magnetic properties of Fe 3 Se 4 nanowire (NW) arrays in anodic aluminum oxide (AAO) porous membrane are studied. Cross-sectional SEM and plane-view TEM images show that the mean wire diameter ( d w ) and the center-to-center spacing ( D ) of Fe 3 Se 4 nanowires are about 220 nm and 330 nm, respectively. The field-cooled magnetization dependent on the temperature indicates a Curie temperature around 334 K for the Fe 3 Se 4 nanowires. The coercivities of Fe 3 Se 4 nanowires at 10 K, obtained from the in-plane and out-of-plane hysteresis loops, are as high as 22.4 kOe and 23.3 kOe, which can be understood from the magnetocrystalline anisotropy and the magnetization reversal process.
Print ISSN:
0021-8979
Electronic ISSN:
1089-7550
Topics:
Physics
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