Japanese Journal of Applied Physics · 1974 · 15 citations · 0 references
Natural SciencesMaterials ScienceMagnetic MaterialsSpectroscopySurface ScienceFerromagnetic MaterialsFerromagnetismMagnetic CharacterizationMagnetic Properties Of SolidsMössbauer SpectroscopySurface MagnetismHyperfine Field DeterminationHyperfine InteractionsHyperfine SpectroscopyMagnetic Hyperfine SplittingMagnetic Moment InteractionMagnetic PropertiesSurface FerromagnetismTemperature-dependent Mössbauer Spectroscopy
The Mössbauer source nucleus, Co57, was utilized as a microprobe for studying the magnetic properties of ferromagnetic metal surface. Carrier-free Co57 atoms were electrolytically deposited on a surface of iron and the Mössbauer source spectrum was taken at 4.2 K. The spectrum consisted of broadened six lines and the distribution of the hyperfine field was estimated to be 240∼340 kOe (cf. the bulk value, 340 kOe). The reduction of the hyperfine field suggests that the magnetic moment in the surface has shrunk in some degree.