| α-Fe2O3纳米微粒的制备及其Mössbuer谱研究 |
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| 引用本文： | 姜继森,高濂,杨燮龙,郭景坤.α-Fe2O3纳米微粒的制备及其Mössbuer谱研究[J].物理化学学报,2000,16(4):312-316. |
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| 作者姓名： | 姜继森 高濂 杨燮龙 郭景坤 |
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| 作者单位： | Department of Chemistry and Physics,East China Normal University,Shanghai 200062,The State Key Laboratory on High Performance Ceramics and Superfine Microstructure,Shanghai Institute of Ceramics,Chinese Academy of Sciences,Shanghai 200050 |
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| 摘 要： |
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| 关 键 词： | 纳米微粒 2O3' ') α-Fe2O3" target="_blank">">α-Fe2O3 各向异性常数 高能球磨 M style="font-family: "Times New Roman" font-size: 10.5pt mso-bidi-font-size: 15.0pt mso-fareast-font-family: 宋体 mso-font-kerning: 1.0pt mso-ansi-language: EN-US mso-fareast-language: ZH-CN össbuer谱' ') mso-bidi-language:" target="_blank">">mso-bidi-language: AR-SA" össbuer谱" target="_blank">lang="EN-US">össbuer谱 |
| 收稿时间： | 1999-07-04 |
| 修稿时间： | 1999-09-20 |
Preparation and Mössbauer Studies of α-Fe2O3 Nanoparticle |
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| Jiang Ji-Sen,Gao Lian,Yang Xie-Long,Guo Jing-Kun.Preparation and Mössbauer Studies of α-Fe2O3 Nanoparticle[J].Acta Physico-Chimica Sinica,2000,16(4):312-316. |
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| Authors: | Jiang Ji-Sen Gao Lian Yang Xie-Long Guo Jing-Kun |
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| Institution: | Department of Chemistry and Physics,East China Normal University,Shanghai 200062|The State Key Laboratory on High Performance Ceramics and Superfine Microstructure,Shanghai Institute of Ceramics,Chinese Academy of Sciences,Shanghai 200050 |
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| Abstract: | α-Fe2O3 nanoparticle with diameter of 10 nm was prepared by high energy ball milling directly from coarse α-Fe2O3 powders. It was found that the Mossbauer spectrum of the α-Fe2O3 nanoparticle at room temperature showed magnetic splitting sexlet lines broadened asymmetrically toward the central peaks .The asymmetric broadening of the spectral peaks could be attributed to the collective magnetic excitations. The anisotropic constant of the α-Fe2O3 nanoparticle exhibited a very high value (K=8.9×103J•m-3). |
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