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FERROMAGNETIC PARTICLES AS ULTRA-SENSITIVE NON-LINEAR RESPONSE LABELS FOR MAGNETIC PARTICLES IMAGING (MPI) AND SENSING APPLICATIONS
FERROMAGNETIC PARTICLES AS ULTRA-SENSITIVE NON-LINEAR RESPONSE LABELS FOR MAGNETIC PARTICLES IMAGING (MPI) AND SENSING APPLICATIONS
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机译:磁性粒子成像(MPI)和传感应用的铁磁颗粒作为超敏感的非线性响应标签
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摘要
A significant enhancement of detection capabilities of the room temperature MPQ is seen using optical lithography-defined, ferromagnetic iron-nickel alloy microdisks. Irreversible transitions between strongly non-collinear (vortex) and a collinear single domain states, driven by an ac magnetic field, translate into a nonlinear magnetic response that enables ultrasensitive detection of material at relatively small magnetic fields.
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