Multiple Quantum Transitions In Magnetic Nanoparticles
ORAL
Abstract
Absorption at multiple resonance frequencies is observed in magnetic nanoparticles in strong similarity with forbidden multiple quantum transitions known for paramagnetic ions. The detailed studies of these low-field signals in the dependence on temperature, concentration and orientation of the texturized samples will be presented and discussed using a ``quantization'' approach, considering resonance transitions between energy levels of a giant spin corresponding to the total magnetic moment of a nanoparticle.
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