Structural Magnetic and Electronic Properties of Gas Insertion Modified Magnetic Systems

技术摘要：利用核磁共振技术研究气体插入改性硬磁体系（包括A钐铁合金）磁化强度和居里温度升高的微观原因。通过在间隙位置引入C和/或N，磁性能得到改善。结果将与中子衍射和Moessbauer研究得出的结论相关联。非技术摘要：最近已经确定，某些富含过渡金属的材料的磁性能随着碳和/或氮等气体的加入而显著改善。这一尚未得到解释的发现不仅对基础科学有特殊意义，而且对改进磁记录磁头的开发也有特殊意义。结果将与以前使用其他技术的测量结果进行比较，特别是中子散射和Moessbauer研究。＊＊＊

9319367 Budnick Technical abstract: The microscopic origin of the increase of magnetization and Curie temperature in gas insertion modified hard magnetic systems (including A samarium iron alloy) will be studied with nuclear magnetic resonance techniques. The improved magnetic properties can be achieved by the introduction of C and/or N into interstitial sites. Results will be correlated with conclusions drawn from neutron diffraction and Moessbauer studies. Non-technical abstract: It has been recently established that the magnetic properties of certain transition metal rich materials were significantly improved with the addition of gases such as carbon and/or nitrogen. This, as yet unexplained, discovery is of special interest to fundamental science but also to the development of improved magnetic recording heads. The results will be compared to previous measurements with other techniques, notably neutron scattering and Moessbauer studies. ***