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Double transition behavior induced by coherent anisotropy in random anisotropy magnets amorphous HoFe and ErFe (1999)

Saito, T. ; Mochiduki, K. ; Masago, E. ; [et al.]

[S.l.] : American Institute of Physics (AIP)

Journal of Applied Physics 85 (1999), S. 4509-4511

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ISSN: 1089-7550

Source: AIP Digital Archive

Topics: Physics

Notes: Magnetic phase transition in weak random anisotropy magnets amorphous a-HoFe and ErFe thin films with "in-plane" coherent anisotropy are studied by measurements of temperature (T) dependence of ac susceptibility. We observed distinct difference in the ac susceptibilities between samples with the coherent anisotropy and without the coherent anisotropy; double transition behavior from paramagnetic to ferrimagnetic (FWA) to correlated spin-glass-like is induced by the coherent "in-plane" anisotropy field larger than about 8 kOe even without H. Such a behavior is also observed in a-DyGdFe with "perpendicular" coherent anisotropy. But, larger coherent anisotropy field than about 20 kOe is needed to induce the FWA state, which may arise from the symmetry difference in the coherent anisotropy. © 1999 American Institute of Physics.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1063/1.370391

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