INVESTIGADORES
SIRKIN Hugo Ricardo Mario
artículos
Título:
From Fe3Si towards Fe3Ge in Finemet-like nanocrystalline alloys: Mössbauer spectroscopy
Autor/es:
J.A. MOYA, V.J. CREMASCHI AND H. SIRKIN
Revista:
PHYSICA B - CONDENSED MATTER
Editorial:
Elsevier Science
Referencias:
Año: 2007 vol. 389 p. 159 - 162
ISSN:
0921-4526
Resumen:
Nanocrystalline Finemet-type ribbons with different Si/Ge ratio [Fe73.5Si13.5xGexNb3B9Cu1 (x ¼ 7, 8, 10 and 13.5)] were studied by
means of Mo¨ssbauer spectroscopy and X-ray diffraction. The trend to form the non-stoichiometric DO3 Fe3Si structure in Finemet
alloys (x ¼ 0) is confirmed as Si is substituted for Ge. Results also indicate that the crystalline fraction increases when Si is gradually
replaced with Ge. The hyperfine magnetic fields and the isomer shifts are characterised by a quasi-linear relationship with the Ge content
of the nanocrystals.
