INVESTIGADORES
SANCHEZ Francisco Homero
artículos
Título:
Giant magnetoresistive properties of FeAu alloys produced by mechanical alloying
Autor/es:
L. M. SOCOLOVSKY, F.H. SÁNCHEZ AND P.H. SHINGU
Revista:
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
Editorial:
ELSEVIER SCIENCE BV
Referencias:
Lugar: Amsterdam; Año: 2001 vol. 226 p. 736 - 737
ISSN:
0304-8853
Resumen:
The FeAu alloys were produced for the "rst time by mechanical alloying. Resistance of samples with iron concentrations of x"15, 20, 25, and 30 at% were measured at 77K under an applied "eld of 14 kOe. A maximum in magnetoresistive ratio (/) of 3.5% was obtained for FeAu. Samples were annealed in order to enhance magnetoresistive properties. These samples exhibit larger ratios, primarily due to the elimination of defects. X-ray di!raction MoK ssbauer spectroscopy and magnetoresistance measurements were performed, in order to correlate bulk and hyper"ne magnetic properties with crystalline structure. X-ray di!ractograms show an FCC structure, with noevidence for a BCC one.
