Abstract
A novel series of rare earth — transition metal 3:29-type intermetallic compounds has been synthesised, with nominal stoichiometry Nd3(Fe1-xCox)27.5Ti1.5 (x= 0,0.1,0.2,0.3, 0.4), extending the solubility limit of Co atoms in the Fe sites up to 0.4. The Nd3(Fe,Ti)29-type structure with monoclinic symmetry (space group A2/m) is dominant in all samples, with some Nd(Fe,Co,Ti)12 as a secondary phase and a small amount of α-Fe(Co). The unit cell volume is decreasing anisotropically as the Co content increases. The Curie temperature increases monotonically with x, from 437 to 876 K for the 3:29 phase, and from 553 to 918 K for the 1:12 secondary phase. The saturation magnetisation increases with x from 143.3 to 175.5 Am2/kg and the anisotropy field increases from 3.7 T to 5.2 T. For x≥ 0.2 and at room temperature the compounds present an easy-magnetisation direction along the [40-2] direction.
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References
Ye.V. Schrebakova, G.V. Ivanova, AS. Yennolenko, Ye.V Belozerov and VS. Gaviko, J. Alloys Compounds 182 (1992) 199.
H.S. Li, J.M. Cadogan, R.L. Davis, A. Margarian and J.B. Dunlop, Solid State Commun. 90 (1994) 487.
O. Kalogirou, V. Psycharis, L. Saettas and D. Niarchos, J. Magn. Magn. Mater. 146 (1995) 335.
C.D. Fuerst, F.E. Pinkerton and J.F. Herbst, J. Appl. Phys. 76 (1994) 6144.
D. Courtois, H.S. Li and J.M. Cadogan, IEEE Trans. Magn. 31 (1995) 3677.
Z. Hu, W.B. Yelon, O. Kalogirou and V. Psycharis, J. Appl. Phys. 80 (1996) 2955.
A. Margarian, H.S. Li, J.B. Dunlop, J.M. Cadogan, J. Alloys Compounds 239 (1996) 27.
O. Kalogirou, V. Psycharis and D. Niarchos, Solid State Commun. 97 (1996) 471.
X.F. Han, F.M. Yang, J.J. Zhu, H.G. Pan, Y.G. Wang, J.L. Wang, N. Tang and R.W. Zhao, J. Appl. Phys. 81(1997)3248.
M. Katter, J. Wecker, C. Kuhrt and L. Schultz, J. Magn. Magn. Mater. 114(1992)35.
V.R. Shah, G. Markandeyulu, K.V.S. Rama Rao, M.Q. Huang, K. Sirisha and M.E. McHenry, J. Magn. Magn. Mater. 190 (1998) 233.
V.R. Shah, G. Markandeyulu, K.V.S. Rama Rao, M.Q. Huang, K. Sirisha and M.E. McHenry, J. Appl. Phys. 85 (1999) 4678.
V.G. Harris, V.R. Shah, G. Markandeyulu, K.V.S. Rama Rao, M.Q. Huang, K. Sirisha and M.E. McHenry, IEEE Trans. Magn. 35 (1999) 3286.
Guoyan Huo, Zhivu Qiao, Guanghui Rao, Jingkui Liang and Baogen Shen, J. Alloys Compounds 285(1999)216.
G.Y. Huo, GH. Rao, Z.Y. Qiao, Q.L. Liu, XL. Chen, J.K. Liang and B.G. Shen, J. Phys.: Condens. Matter 12 (2000) 1161.
Zhi-gang Sun, Hong-wei Zhang, Jing-yun Wang and Bao-gen Shen, Appl. Phys. Lett. 75 (1999) 3850.
J.K. Liang, Q. Huang, A. Santoro, J.L. Wang and F.M. Yang, J. Appl. Phys. 86 (1999) 2155.
L. Morellon, L. Pareti, P.A. Algarabel, F. Albertini and M.R. Ibarra, J. Phys.: Condens. Matter 6 (1994) L379.
D. Courtois, Hong-Shuo Li and J.M. Cadogan, Solid State Commun. 98 (1996) 565.
Z. Hu and W.B. Yelon, Solid State Commun. 91 (1994) 223.
F.M. Yang, B. Nasunjilegal, W. Gong and G.C. Hadjipanayis, IEEE Trans Magn. 30 (1994) 4957.
BoPing Hu, Hong-Shuo Li, J.P. Gavigan and J.M.D. Coey, J. Phys.: Condens. Matter 1 (1989) 755.
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Gioureli, D.K. et al. (2001). Enhancement of Magnetic Properties By Co Substitution in Nd3(Fei1-xCox)27.5Ti1.5 (x= 0,0.1,0.2,0.3,0.4) Intermetallic Compounds. In: Hadjipanayis, G.C. (eds) Magnetic Storage Systems Beyond 2000. NATO Science Series, vol 41. Springer, Dordrecht. https://doi.org/10.1007/978-94-010-0624-8_36
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DOI: https://doi.org/10.1007/978-94-010-0624-8_36
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