Title :
Magnetic properties of acicular ultrafine iron particles
Author :
Varanda, L.C. ; Goya, G.F. ; Morales, M.P. ; Marques, R.F.C. ; Godoi, R.H.M. ; Jafelicci, M. ; Serna, C.J.
Author_Institution :
Instituto de Quimica de Araraquara, UNESP, Araraquara, Brazil
Abstract :
Summary form only given. The introduction of high recording densities on recording media has meant a dramatic bit size reduction and track density increase on the media surface. The magnetic properties of ultrafine iron particles smaller than (a) 60 nm and (b) 230 nm (major axis) obtained from a new synthetic carbonate Fe(III)-based route are reported. Transmission electron microscopy (TEM), X-ray diffraction (XRD), magnetization and Mossbauer spectroscopy (MS) have been used to characterize the resulting samples.
Keywords :
Mossbauer effect; X-ray diffraction; ferromagnetic materials; iron; magnetic particles; magnetic recording; magnetisation; transmission electron microscopy; 230 nm; 60 nm; Fe; Mossbauer spectra; TEM; X-ray diffraction; XRD; acicular ultrafine particles; bit size; magnetic properties; magnetization; recording media; synthetic carbonate Fe(III)-based route; track density; transmission electron microscopy; Anisotropic magnetoresistance; Chemicals; Coercive force; Crystallization; Iron; Magnetic properties; Magnetic resonance; Scanning probe microscopy; Stability; Surface morphology;
Conference_Titel :
Magnetics Conference, 2002. INTERMAG Europe 2002. Digest of Technical Papers. 2002 IEEE International
Conference_Location :
Amsterdam, The Netherlands
Print_ISBN :
0-7803-7365-0
DOI :
10.1109/INTMAG.2002.1000647
