论文标题
在晶体Fe葡萄糖酸酯中揭示磁成分
Revealing magnetic component in crystalline Fe-gluconate
论文作者
论文摘要
低温Mössbauer光谱和磁化测量在Fe-葡萄糖酸酯的结晶样品上进行。 Fe原子在两个阶段中存在，即主要（90-94 pct。）和一个次要（6-10 pct。）。基于光谱参数的值，前者可以被视为亚铁，后者被视为铁。与铁相相关的子谱显示出在Ca以下的显着拓宽。 30 K对应于7.5公斤。通过磁化测量结果证实了效果的磁起源。发现了磁性对两个组分中Fe原子晶格振动的影响的证据。与Fe2+离子的振动相关的Debye温度T_D在低于Ca的温度范围内约2倍。比从上面测得的数据确定的30K。 30 K.有趣的是，从CA.30 K下记录的数据中找到的Fe3+离子的T_D值比确定Fe2+离子确定的相应值小的两倍。
Low temperature Mössbauer spectroscopic and magnetization measurements were performed on a crystalline sample of Fe-gluconate. Fe atoms were revealed to exist in two phases i.e. a major (90-94 pct.) and a minor (6-10 pct.). Based on values of spectral parameters the former can be regarded as ferrous and the latter as ferric. A sub spectrum associated with the ferric phase shows a significant broadening below ca. 30 K corresponding to 7.5 kGs. A magnetic origin of the effect was confirmed by the magnetization measurements. Evidence on the effect of the magnetism on the lattice vibrations of Fe atoms in both components was found. The Debye temperature, T_D, associated with the vibrations of Fe2+ ions is by a factor of about 2 smaller in the temperature range below ca. 30 K than the one determined from the data measured above ca. 30 K. Interestingly, the T_D-value found for the Fe3+ ions from the data recorded below ca.30 K is about two times smaller than the corresponding value determined for the Fe2+ ions.
