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    American Institute of Physics (AIP)
    Publication Date: 2014-03-04
    Description: The exchange bias (EB) phenomenon has been found in Nd 2/3 Ca 1/3 MnO 3 perovskite. The phenomenon manifests itself as a negative horizontal shift of magnetization hysteresis loops. The EB phenomenon is evident of an interface exchange coupling between coexisting antiferromagnetic (AFM) and ferromagnetic (FM) phases and confirms the phase separated state of the compound at low temperatures. The EB effect is found to be strongly dependent on the cooling magnetic field and the temperature, which is associated with the evolution of spontaneous AFM–FM phase separated state of the compound. Analysis of magnetic hysteresis loops has shown that ferromagnetic moment M FM originating from the FM clusters saturates in a relatively low magnetic field about H ∼ 0.4 T. The obtained saturation value M FM (1 T) ∼ 0.45 μ B is in a good agreement with our previous neutron diffraction data.
    Print ISSN: 1063-777X
    Electronic ISSN: 1090-6517
    Topics: Physics
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