High Field Magnetization Investigation and Mean Field Theory in Amorphous Co{sub 75}Er{sub 17}B{sub 8} Ribbons
- Université Hassan II de Casablanca, LPCMI, Faculté des Sciences Ain Chock (Morocco)
- Université Hassan II de Casablanca, LPMMAT, Faculté des Sciences Ain Chock (Morocco)
Amorphous Co{sub 75}Er{sub 17}B{sub 8} ribbons were prepared by the melt spinning technique, and their magnetic properties were studied. Mean field theory was used to describe the temperature dependence of magnetization. High-field magnetization studies performed in magnetic fields up to 15 T have revealed a magnetic behavior typical of a non-collinear magnetic structure of Er and Co sublattices. The simulated magnetization curves show the existence of two critical fields at H{sub cri1} = 9.5 T and H{sub cri2} = 94.2 T, corresponding to collinear ferrimagnet, and collinear field-forced ferromagnetic behaviors. The high value of H{sub cri2} highlights the strong antiferromagnetic interaction between Er and Co sublattices. From the non-collinear regime, the inter-subnetwork molecular field coefficients of the ferrimagnetic alloy were accurately evaluated. In addition, it is shown that the region of canted moments can be satisfactorily described by a phase diagram in the H-T plane.
- OSTI ID:
- 22773986
- Journal Information:
- Journal of Superconductivity and Novel Magnetism, Vol. 31, Issue 7; Other Information: Copyright (c) 2018 Springer Science+Business Media, LLC, part of Springer Nature; http://www.springer-ny.com; Country of input: International Atomic Energy Agency (IAEA); ISSN 1557-1939
- Country of Publication:
- United States
- Language:
- English
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