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Scanning conversion electronic Mössbauer spectroscopy of local surface layers of materials
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms ( IF 1.3 ) Pub Date : 2021-06-30 , DOI: 10.1016/j.nimb.2021.06.015
M.F. Vereshchak , I.A. Manakova , A.K. Shokanov , E.E. Suslov , Zh.K. Tleubergenov , Ye.A. Smikhan

The method of scanning conversion electron Mössbauer spectroscopy has been proposed, which suggests the anode in the conversion electron detector to be made in the needle form. It has been shown that it is possible to scan the sample surface to obtain information on the structural-phase state of the local near-surface layers of the studied materials. The methods of transmission Mössbauer spectroscopy (MS), integral (ICEMS) and scanning (SCEMS) conversion electron Mössbauer spectroscopy have been used to study the iron nanotubes prepared by template synthesis using the track membranes. According to MS data, ~ 90% of iron in the nanotube structure is in a chemically free state. It follows from the ICEMS and SCEMS results that in the near-surface layers of nanotubes the iron cations are predominantly localized in the structure of hydroxides. The differences in the orientation of the magnetic moments in the bulk and near-surface layers have been established.



中文翻译:

材料局部表面层的扫描转换电子穆斯堡尔光谱

已经提出了扫描转换电子穆斯堡尔谱的方法,该方法建议将转换电子探测器中的阳极制成针状。已经表明,可以扫描样品表面以获得有关所研究材料的局部近表面层的结构相状态的信息。透射穆斯堡尔光谱 (MS)、积分 (ICEMS) 和扫描 (SCEMS) 转换电子穆斯堡尔光谱的方法已被用于研究使用轨道膜通过模板合成制备的铁纳米管。根据 MS 数据,纳米管结构中约 90% 的铁处于化学游离状态。根据 ICEMS 和 SCEMS 结果,在纳米管的近表面层中,铁阳离子主要位于氢氧化物的结构中。

更新日期:2021-06-30
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