Abstract
Ultrafine amorphous Fe–B alloy nanoparticles are self-assembled within anodic aluminum oxide templates by combining a preparation process of Fe–B nanoparticles with a template method. Scanning electron microscopy, inductively coupled plasma-atomic emission spectrometry, X-ray diffraction spectrometry, Mössbauer spectrometry, and vibrating sample magnetometry are employed to study the morphology, chemical composition, structure, and magnetic properties of the nanoparticle assemblies, respectively. The results show that the alloy particles are amorphous with a boron content of 24 at. % and can be in shape of sphere and rod by controlling the duration of preparation. There is a narrow distribution of the sizes of spherical nanoparticles with an average diameter below 35 nm in relatively short preparation time, while rods are found in longer time. The measurements of magnetic properties indicate that the nanoparticles are mostly in superparamagnetic state and the self-assembly of the nanoparticles has a weak magnetic anisotropy with an easy direction perpendicular to the template plane.
Similar content being viewed by others
References
Luborsky FE (ed.) (1983) Amorphous metallic alloys. Butterworths, London
Armyanov S, Vitkova S, Blaoiev O (1997) J Appl Electrochem 27:185
Silva RC et al (2001) Phys Status Solidi A 187:85
Sánchez FH, Fernández van Raap MB, Budnick JI (1992) Phys Rev B 46:13881
Sánchez FH, Zhang YD, Budnick JI, Hasegawa R (1989) J Appl Phys 66:1671
Vavassori P, Ronconi F, Puppin E (1996) J Appl Phys 80:6920
Linderoth S, Mørup S (1990) J Appl Phys 67:4472
Fan Y, Hu Z, Shen J, Yan Q, Chen Y (1993) J Mater Sci Lett 12:596
Wang H et al (1995) Appl Catal A 129:L143
Hu Z, Fan Y, Chen Y (1999) Appl Phys A 68:225
Liu QF, Wang JB, Yan ZJ, Xue DS (2005) Phys Rev B 72:144412
Zhang LY et al (2004) J Phys: Condens Matter 16:4541
Cao HQ et al (2003) Appl Phys Lett 83:761
Xue DS, Shi HG (2004) Nanotechnology 15:1752
Yuan XY et al (2004) Nanotechnology 15:59
Xue DS, Fu JL, Shi HG (2007) J Magn Magn Mater 308:1
O’Handley RC et al (1976) J Appl Phys 47:4660
Acknowledgement
This work is supported by the NSFC of P. R. China under Grant No. 50671046.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Yan, Z.J., Xue, D.S. Synthesis of ultrafine amorphous Fe–B alloy nanoparticles using anodic aluminum oxide templates. J Mater Sci 43, 771–774 (2008). https://doi.org/10.1007/s10853-007-2046-3
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10853-007-2046-3