Evidence against the existence of unstable magnetic moments in the system Ce(Fe1−xCox)2

57Fe Mossbauer studies in the system Ce(Fe1-xCox)2 for x=0.15 and 0.25 have shown the sudden loss in magnetisation in this system, well bellow the onset of long-range ferromagnetic order, arises due to the reorientation and locking of Fe moments in such a way as to produce almost zero net magnetisation. The thermal variation of the average hyperfine field, however, does not have any signature of the reorientation transition temperature.

[1]  Tandon,et al.  Reentrant spin-glass-like behavior as a consequence of constrained dynamics of magnetic clusters: A case study of Fe1.4Ru1.6Si. , 1988, Physical review. B, Condensed matter.

[2]  B. Coles,et al.  The instability of ferromagnetism in CeFe2: effects of Al substitution , 1987 .

[3]  K. Schwarz,et al.  Pressure dependence of the magnetisation of YFe2 and ZrFe2: computation and experiment , 1986 .

[4]  I. Campbell.  Spin glasses and reentrant alloys , 1986 .

[5]  Beck.  Spin clusters and random local anisotropy in mictomagnetic Au-Fe alloys. , 1985, Physical review. B, Condensed matter.

[6]  D. F. Franceschini,et al.  Magnetic properties of Ce(Fe1-xAlx)2 for x⩽0.20 , 1985 .

[7]  R. Grossinger,et al.  The extent of localisation of the Fe moment in Y(Fe1-xAlx)2 and Zr(Fe1-xAlx)2-a comparison of the magnetic properties , 1982 .

[8]  G. Hilscher.  Onset of magnetism in concentrated ternary alloys II: Laves phase compounds A(Fe1-xBx)2 (A = Y, Zr, U; B = Mn, Co and Al) , 1982 .

[9]  B. Lax,et al.  Laser-induced gas breakdown at cyclotron resonance: Low pressure results , 1979 .

[10]  M. Dariel,et al.  Crystal-field-induced spin rotations in NdCo/sub 2/ and HoCo/sub 2/: A Moessbauer study , 1976 .

[11]  G. Longworth.  Mössbauer effect study of the pseudo-binary system Ce(Fe1−xCOx)2 , 1975 .

[12]  K. Buschow,et al.  Temperature dependence of the crystal-field-induced anisotropy in SmFe$sub 2$ , 1973 .

[13]  A. Guimarães,et al.  Mössbauer studies of the cubic Laves iron-rare-earth intermetallic compounds , 1968 .