Abstract
The magnetic properties of ball-milled TbFe2 and TbFe2B were studied by magnetization measurements. X-ray diffraction studies on TbFe2B showed that boron occupied interstitial position in the crystal structure, just as hydrogen did. The value of the saturation magnetization of TbFe2B was found to be smaller than that of TbFe2. This is explained on the basis of a charge transfer between the boron atoms and the 3d band of Fe. The anisotropy of TbFe2B was found to be large compared to that of TbFe2. X-ray diffractograms for the ball milled samples showed that after 80 h of milling, a predominantly amorphous phase was obtained. TbFe2B was found to undergo easy amorphization compared to TbFe2. Magnetization of TbFe2 was found to decrease rapidly with initial milling hours and was found to be constant with further hours of milling. TbFe2B exhibited an anomalous behaviour with an increase in moment with milling hours and this may be due to the segregation of α-Fe.
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References
Annapoorni S and Rama Rao K V S 1990J. Appl. Phys. 67 424
Annapoorni S, Markandeyulu G and Rama Rao K V S 1989J. Appl. Phys. 65 495
Annapoorni S, Markandeyulu G and Rama Rao K V S 1990J. Phys. Soc. Jap. 59 3014
Clark A E 1980Ferromagnetic materials (ed.) E P Wholfrath (Amsterdam: North Holland)Vol. 1, p. 531
Clark A E, Belson H S and Tamagawa N 1972Phys. Lett. A42 160
Dhilsha K R and Rama Rao K V S 1990J. Appl. Phys. 68 259
Geshev J, Bozukov L, Coey JM D and Mikhov M 1997J. Magn. Magn. Mater. 170 219
Gignoux D and Schmitt D 1995J. Alloys and Compounds 225 423
Kishore S, Markandeyulu G and Rama Rao K V S 1998Solid State Commun. 108 313
Koon N C, Williams C M and Das B N 1991J. Magn. Magn. Mater. 100 173
Larica C, Passamani E C, Nunes E, Orlando M T D, Alves K M B and Baggio-Saitovitch E 1998J. Alloys and Compounds 274 23
Lee S J, Lange R J, Canfield P C, Harmon B N and Lynch D W 2000Phys. Rev. B61 9669
Modder I W, Bakker H and Zhou G F 1999Physica B262 141
Ren W J, Zhang Z D, Markosyan A S, Zhao X G, Jin X M and Song X P 2001J. Phys. Condens. Matter 34 3024
Ren W J, Zhang Z D, Liu J P, Zhao X G, Liu W, Geng D Y and Jin X M 2002J. Appl. Phys. 91 8207
Senthil Kumar M, Reddy K V and Rama Rao K V S 1995IEEE Trans. Magn. 31 4160
Tang Jinke, Zhao Wei, Charles J, Cannor O and Li Sichu 1997J. Alloys and Compounds 250 482
Tribuzy C V B, Biondo A, Larica C, Alves K M B and Guimaraes A P 1999J. Magn. Magn. Mater. 195 49
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Chelvane, J.A., Kasiviswanathan, S., Rao, M.V. et al. Magnetic properties of ball-milled TbFe2 and TbFe2B. Bull Mater Sci 27, 169–173 (2004). https://doi.org/10.1007/BF02708500
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DOI: https://doi.org/10.1007/BF02708500