| 包钴对α-Fe2O3粉末Morin相变的影响 |
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| 引用本文： | 罗河烈,王祝丰. 包钴对α-Fe2O3粉末Morin相变的影响[J]. 物理学报, 1986, 35(4): 489-496 |
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| 作者姓名： | 罗河烈 王祝丰 |
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| 作者单位： | 中国科学院物理研究所 |
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| 摘 要： | 用穆斯堡尔谱,磁性测量,中子衍射和X射线光电子能谱(XPS)等方法对纯的和包钴α-Fe2O3粉末Morin相变的影响以及有关性质进行了研究,发现包钴会使α-Fe2O3的Morin温度降低,相变温度的区域扩大,矫顽力明显增大,3d能带变化,假设包钴可使α-Fe2O3的单离子各向异性常数KFS下降来解释上述实验结果。关键词：
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| 收稿时间： | 1985-06-28 |
EFFECT OF COBALT COATING ON THE MORIN TRANSITION OF α-Fe2O3 |
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| LUO HE-LIE and WANG ZHU-FENG. EFFECT OF COBALT COATING ON THE MORIN TRANSITION OF α-Fe2O3[J]. Acta Physica Sinica, 1986, 35(4): 489-496 |
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| Authors: | LUO HE-LIE and WANG ZHU-FENG |
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| Abstract: | The M?ssbauer spectra, the magnetic properties, neutron diffraction and X-ray pho-toelectron spectra of pure and Co coated α-Fe2O3 have been measured. It is found that the Morin transition temperature of α-Fe2O3 is influenced and the eoercivity is increased obviously by Co coating. We suggest that a fine structure (single ion) anisotropy energy constant Kfs would be decreased by Co coating, this could explain the experimental results.
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