Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5385293 | Chemical Physics Letters | 2010 | 6 Pages |
Abstract
⺠â¼70 nm ε-Fe3N nanoparticles are ferromagnetic at room temperature and the saturation magnetization at 5 K reaches close to the bulk value (133 emu/g) ⺠â¼20 nm ε-Fe3N are superparamagnetic at room temperature and the magnetization is significantly lower ⺠Magnetization depends on nitrogen stoichiometry in the nitrides as well as particle size ⺠The ε-Fe3N nanoparticle surface consists of nm-thick oxide/oxynitride layers ⺠Spin-glass-like ordering exists at low temperatures ⺠The nanoparticles are highly interacting with strong dipolar interactions and exchange-like interactions
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Authors
Sayan Bhattacharyya, S.M. Shivaprasad, N.S. Gajbhiye,