Nanoscale phase distribution in multiphase Ni-Cr/NiO nanoparticles governs exchange bias, producing negative-to-positive sign inversion with temperature and a crossover from exchange to dipolar interactions, demonstrated via synthesis, characterization, and DFT-informed simulations.
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Nanoscale Phase Distribution Governs Exchange Bias in Multiphase Magnetic Nanoparticles
Nanoscale phase distribution in multiphase Ni-Cr/NiO nanoparticles governs exchange bias, producing negative-to-positive sign inversion with temperature and a crossover from exchange to dipolar interactions, demonstrated via synthesis, characterization, and DFT-informed simulations.