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- Gen Long
- University at Buffalo, the State University of New York 1 , Buffalo, New York 14260, USA
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- Hongwang Zhang
- University at Buffalo, the State University of New York 1 , Buffalo, New York 14260, USA
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- Da Li
- University at Buffalo, the State University of New York 1 , Buffalo, New York 14260, USA
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- Renat Sabirianov
- University of Nebraska-Omaha 3 , Omaha, Nebraska 68182, USA
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- Zhidong Zhang
- Shenyang National Laboratory for Materials Science, Institute of Metal Research and International Center for Materials Physics, Chinese Academy of Sciences 2 , Shenyang, Liaoning 110016, China
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- Hao Zeng
- University at Buffalo, the State University of New York 1 , Buffalo, New York 14260, USA
書誌事項
- 公開日
- 2011-11-14
- DOI
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- 10.1063/1.3662388
- 公開者
- AIP Publishing
この論文をさがす
説明
<jats:p>The hard magnetic properties of Fe3Se4 nanostructures were studied both experimentally and theoretically. Magnetic measurements showed that Fe3Se4 nanoparticles can exhibit giant coercivity exceeding 40 kOe at low temperature (10 K). This unusually large coercivity is attributed to the uniaxial magnetocrystalline anisotropy of the monoclinic structure of Fe3Se4 with ordered cation vacancies. The measured anisotropy constant is 1.0 × 107 erg/cm3, consistent with the result from first-principles calculations. The magnetization reversal mechanism of the nanoparticles is found to be incoherent spin rotation.</jats:p>
収録刊行物
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- Applied Physics Letters
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Applied Physics Letters 99 (20), 2011-11-14
AIP Publishing
