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Structural and magnetic properties of DyCo4−xFexGa compounds

Published online by Cambridge University Press:  06 March 2012

W. H. Zhang ,
J. Q. Li ,
Y. J. Yu ,
F. S. Liu ,
W. Q. Ao  and
J. L. Yan
W. H. Zhang
Affiliation:
College of Materials Science and Engineering, Guangxi University, Nanning, 530004, People’s Republic of China and Key Laboratory of Nonferrous Metal Materials and New Processing Technology, Ministry of Education, Guangxi University, Nanning, Guangxi 53004, People’s Republic of China
J. Q. Li*
Affiliation:
College of Materials Science and Engineering, Guangxi University, Nanning, 530004, People’s Republic of China and Key Laboratory of Nonferrous Metal Materials and New Processing Technology, Ministry of Education, Guangxi University, Nanning, Guangxi 53004, People’s Republic of China
Y. J. Yu
Affiliation:
College of Materials Science and Engineering, Guangxi University, Nanning, 530004, People’s Republic of China and Key Laboratory of Nonferrous Metal Materials and New Processing Technology, Ministry of Education, Guangxi University, Nanning, Guangxi 53004, People’s Republic of China
F. S. Liu
Affiliation:
College of Materials Science and Engineering, Guangxi University, Nanning, 530004, People’s Republic of China and Key Laboratory of Nonferrous Metal Materials and New Processing Technology, Ministry of Education, Guangxi University, Nanning, Guangxi 53004, People’s Republic of China
W. Q. Ao
Affiliation:
College of Materials Science and Engineering, Guangxi University, Nanning, 530004, People’s Republic of China and Key Laboratory of Nonferrous Metal Materials and New Processing Technology, Ministry of Education, Guangxi University, Nanning, Guangxi 53004, People’s Republic of China
J. L. Yan
Affiliation:
College of Materials Science and Engineering, Guangxi University, Nanning, 530004, People’s Republic of China; Key Laboratory of Nonferrous Metal Materials and New Processing Technology, Ministry of Education, Guangxi University, Nanning, Guangxi 530004, People’s Republic of China
*
a)Author to whom correspondence should be addressed. Electronic mail: [email protected]
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Abstract

The structural and magnetic properties of the DyCo4−xFexGa compounds with x=0, 0.5, 1, and 1.5 have been investigated by X-ray diffraction and magnetic measurements. Powder X-ray diffraction analysis reveals that each of the DyCo4−xFexGa compounds has a hexagonal CaCu5-type structure (space group P6/mmm). The Fe solubility limit in DyCo4−xFexGa is x<1.5. The higher the value of x, the larger the unit-cell parameters a, c, V, and the 3d-sublattice moment but the smaller the 3d uniaxial anisotropy. Magnetic measurements show that the Curie temperature of DyCo4−xFexGa increases from 498 K for x=0 to 530 K for x=1.5, the compensation temperature Tcomp decreases from 286 K for x=0 to 238 K for x=1.5, and the spin-reorientation transition temperature increases from 403 K for x=0 to 530 K for x=0.5. No spin-reorientation transition was found in the samples with x=1.0 and 1.5. The saturation magnetization of DyCo4−xFexGa measured at 173 K increases but the magnetization measured at 300 K decreases with increasing Fe content x.

Keywords

transition metal compoundscrystal structuremagnetic properties
Type
Technical Articles
Information
Powder Diffraction , Volume 25 , Supplement S1 , September 2010 , pp. S31 - S35
Copyright
Copyright © Cambridge University Press 2010

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References

Banerjee, D., Bahadur, D., Suresh, K. G., and Nigam, A. K. (2006). “Effect of Cu substitution on the structural and magnetic properties of DyCo5−xCux,” Physica BPHYBE3 378–380, 1091–1092.10.1016/j.physb.2006.01.434CrossRefGoogle Scholar
Banerjee, D., Suresh, K. G., and Nigam, A. K. (2008). “Effect of Y substitution on the structural and magnetic properties of Dy1−xYxCo5 compounds,” J. Magn. Magn. Mater.JMMMDC 320, 374–378.10.1016/j.jmmm.2007.06.011CrossRefGoogle Scholar
Buschow, K. H. J. (1977). “Intermetallic compounds of rare-earth and 3d transition metals,” Rep. Prog. Phys.RPPHAG 40, 1179–1256.10.1088/0034-4885/40/10/002Google Scholar
Klosek, V., Zlotea, C., and Isnard, O. (2003). “Structural and magnetic properties of hexagonal DyCo4M compounds (M=Al,Ga),” J. Phys.: Condens. MatterJCOMEL 15, 8327–8337.10.1088/0953-8984/15/49/011Google Scholar
Klosek, V., Zlotea, C., and Isnard, O. (2004). “Magnetic properties of the hexagonal DyCo4Al compound,” Physica BPHYBE3 350, E155–E158.10.1016/j.physb.2004.03.041CrossRefGoogle Scholar
Konno, K., Ido, H., and Maki, K. (1992). “Spin reorientation in (Pr1−xNdx)Co4Al, Nd(Co4−xFex)Al and (Nd1−xDyx)Co4Al,” J. Magn. Magn. Mater.JMMMDC 104–107, 1369–1370.10.1016/0304-8853(92)90623-VGoogle Scholar
Mayot, H., Isnard, O., Grandjean, F., and Long, G. J. (2008). “A structural, magnetic, and Mossbauer spectral study of the TbCo4−xFexB compounds with x=0, 1, and 2,” J. Appl. Phys.JAPIAU 103, 093917.10.1063/1.2927499CrossRefGoogle Scholar
Richter, M. (1998). “Band structure theory of magnetism in 3d-4f compounds,” J. Phys. DJPAPBE 31, 1017–1048.10.1088/0022-3727/31/9/002CrossRefGoogle Scholar
Strnat, K. J. (1988). Ferromagnetic Materials (North-Holland, Amsterdam), Vol. 4, p. 131.Google Scholar
Taylor, K. N. R. and Poldy, C. A. (1975). “Structural and magnetic properties of pseudobinary phases in the yttrium-3d transition metal phase diagrams,” J. Phys. F: Met. Phys.JPFMAT 5, 1593–1606.10.1088/0305-4608/5/8/018CrossRefGoogle Scholar
Thang, C. V., Tai, L. T., Liu, J. P., Thuy, N. P., Hien, T. D., and Franse, J. J. M. (1995). “Fe substitution effects on the magnetic properties of the RCo4−xFexAl compounds (R: Ho and Y),” J. Magn. Magn. Mater.JMMMDC 140–144, 935–936.10.1016/0304-8853(94)00760-8CrossRefGoogle Scholar
Zlotea, C. and Isnard, O. (2003). “Effects of the substitution of iron for cobalt on the crystal and magnetic properties of PrCo4−xFexM (M=Al and Ga),” J. Alloys Compd.JALCEU 348, 43–51.10.1016/S0925-8388(02)00850-2CrossRefGoogle Scholar