Abstract Hyperfine interactions in Fe78B15Sn7 metallic glass with Co/Fe substitution were investigated by Mossbauer spectrometry. As-quenched samples were prepared by planar flow casting and subsequently annealed at 673 K for 30 min which is in the region of phase transformations determined by differential scanning calorimetry. Magnetic thermogravimetry unveiled increase in Curie temperature after Co substitution. Structural analysis was performed by X-ray diffraction and transmission electron microscopy. The results show formation of primary bcc-Fe(Co) phase with proceeding nanocrystallization and indicate supersaturation of this phase with Sn. Hyperfine interactions between nuclei and electron shells were investigated by Mossbauer spectrometry at different temperatures and in external magnetic field. Modifications of the short-range order are demonstrated mainly by deviations in the positions of the net magnetic moment. They are driven by nanocrystallization as well as temperature of measurement and/or presence of external magnetic field.

中文翻译：

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穆斯堡尔光谱法测定 Fe/Co-B-Sn 非晶合金中的超精细相互作用

摘要 采用穆斯堡尔光谱法研究了Co/Fe 取代Fe78B15Sn7 金属玻璃中的超精细相互作用。淬火样品通过平面流铸制备，随后在 673 K 下退火 30 分钟，这是在由差示扫描量热法确定的相变区域内。磁性热重法揭示了 Co 取代后居里温度的升高。通过X射线衍射和透射电子显微镜进行结构分析。结果显示初级bcc-Fe(Co)相随着纳米结晶的进行形成并且表明该相与Sn过饱和。通过穆斯堡尔谱在不同温度和外部磁场中研究了原子核和电子壳层之间的超精细相互作用。 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 短程有序的修改主要通过净磁矩位置的偏差来证明。它们由纳米化以及测量温度和/或外部磁场的存在驱动。