Preparation of nanocrystalline barium hexaferrite in a glass medium
作者： M. Pal , P. Brahma , D. Chakravorty , D. Bhattacharyya , H.S. Maiti
DOI: 10.1016/S0965-9773(97)00222-5
关键词:
摘要: Abstract Barium hexaferrite phase of composition BaO-6Fe 2 O 3 dimensions in the range 8.2 to 17.6 nm have been grown within a glass medium by subjecting latter suitable heat treatment. Magnetization measurements on resultant glass-ceramic carried out at temperatures varying from 20 300 K. The coercive field H c is found be much smaller than that bulk hexaferrite. value increases as temperature reduced. Also, shows an increase with particle size. It appears effective anisotropy constant plays important role determining this behavior.
elsevier.com
sci-hub.se 参考文章(9)
Science and Technology of Nanostructured Magnetic Materials Published in <b>1991</b>. ,(1991) , 10.1007/978-1-4899-2590-9
S. H. Liou, C. L. Chien, Granular metal films as recording media Applied Physics Letters. ,vol. 52, pp. 512- 514 ,(1988) , 10.1063/1.99402
Gang Xiao, C. L. Chien, Giant magnetic coercivity and percolation effects in granular Fe(SiO2) solids Applied Physics Letters. ,vol. 51, pp. 1280- 1282 ,(1987) , 10.1063/1.98705
B Roy, D Chakravorty, Electrical conductance of silver nanoparticles grown in glass-ceramic Journal of Physics: Condensed Matter. ,vol. 2, pp. 9323- 9334 ,(1990) , 10.1088/0953-8984/2/47/007
A. Chatterjee, D. Das, S.K. Pradhan, D. Chakravorty, Synthesis of nanocrystalline nickel-zinc ferrite by the sol-gel method Journal of Magnetism and Magnetic Materials. ,vol. 127, pp. 214- 218 ,(1993) , 10.1016/0304-8853(93)90217-P
T. Pannaparayil, R. Marande, S. Komarneni, Magnetic properties of high‐density Mn‐Zn ferrites Journal of Applied Physics. ,vol. 69, pp. 5349- 5351 ,(1991) , 10.1063/1.348025
A. Chatterjee, D. Das, D. Chakravorty, K. Choudhury, Mössbauer spectra of nanocrystalline Fe and Fe‐Cr particles in sol‐gel‐derived SiO2 glass Applied Physics Letters. ,vol. 57, pp. 1360- 1362 ,(1990) , 10.1063/1.103436
K. Haneda, A. H. Morrish, Noncollinear magnetic structure of CoFe2O4 small particles Journal of Applied Physics. ,vol. 63, pp. 4258- 4260 ,(1988) , 10.1063/1.340197
E. H. Frei, S. Shtrikman, D. Treves, Critical Size and Nucleation Field of Ideal Ferromagnetic Particles Physical Review. ,vol. 106, pp. 446- 455 ,(1957) , 10.1103/PHYSREV.106.446