Abstract

The type of magnetocrystalline anisotropy (MCA) of Sm–Fe–Co–Ti alloys and their hydrides with a ThMn\({}_{12}\)-type structure has been established by magnetometry at room temperature. Using atomic force microscopy (AFM) in combination with magnetic force microscopy (MFM), the state of their surface was studied. The initial SmFe\({}_{11}\)Ti and SmFe\({}_{5}\)Co\({}_{6}\)Ti samples were obtained by argon arc melting. The SmFe\({}_{11}\)Ti alloy was subjected to a hydrogenation procedure, as a result of which the SmFe\({}_{11}\)TiH\({}_{0.4}\) and SmFe\({}_{11}\)TiH\({}_{1}\) samples were synthesized. Using AFM and MFM, the features of topography, defects of the investigated surfaces, domain structure, morphology of magnetic inclusions of the initial samples and their hydrides were established. The main magnetic characteristics of the Sm–Fe–Co–Ti–H system obtained using magnetometry have been compared with the results of MFM studies.

中文翻译：

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含ThMn $$ {} _ {\ mathbf {12}} $$的Sm-Fe-Co-Ti-H化合物的性质的磁学，原子力显微镜和磁力显微镜研究

摘要

通过室温下的磁力测定法已经建立了具有ThMn \（{} _ {12} \）型结构的Sm-Fe-Co-Ti合金及其氢化物的磁晶各向异性（MCA）类型。结合原子力显微镜（AFM）和磁力显微镜（MFM），研究了其表面状态。通过氩弧熔化获得了初始SmFe \ {{} _ {11} \} Ti和SmFe \ {{} _ {5} \} Co \ {{} _ {6} \} Ti样品。对SmFe \ {{} _ {11} \} Ti合金进行加氢处理，其结果是SmFe \ {{} _ {11} \} TiH \ {{} _ {0.4} \}和SmFe \（{} _ {11} \） TiH \（{} _ {1} \）样品被合成。利用原子力显微镜和原子力显微镜，建立了初始样品的表面形貌，表面缺陷，磁畴结构，磁性夹杂物及其氢化物的形貌特征。使用磁力计获得的Sm–Fe–Co–Ti–H系统的主要磁特性已与MFM研究的结果进行了比较。