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Artigo Revisado por pares
BIBTEX RIS

Mössbauer spectroscopy in nanocrystalline Fe88Zr7B4Cu1

1995; Elsevier BV; Volume: 145; Issue: 3 Linguagem: Inglês

10.1016/0304-8853(94)01635-6

ISSN

1873-4766

Autores

Irene Navarro, A. Hernando, M. Vázquez, Seong‐Cho Yu,

Tópico(s)

Magnetic properties of thin films

Resumo

Local structural changes during the crystallization process of initially amorphous Fe88Zr7B4Cu1 (at %) have been investigated by means of Mössbauer spectroscopy at room temperature. In the as-cast state, no ferromagnetic phase has been detected. The crystallization process has been found to consist of two steps. In the first step (after annealing up to 500–650°C), precipitation of α-Fe (47–59%) takes place. The remaining amorphous matrix evolves to a ferromagnetic phase, although a small fraction of non-ferromagnetic phase (5–8%) is also detected during the crystallization process. Annealing at more elevated temperatures completely crystallizes the amorphous phase and three new crystalline subspectra are found. Correlations between the soft magnetic properties and these local structural changes are also discussed.

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