Multicore Magnetic Particles

摘要

A multicore magnetic particle. In one embodiment, the magnetic particle includes a plurality of superparmagnetic cores embedded in a non-magnetic matrix. In another embodiment, the effective anisotropy energy barrier of the particle is larger than the sum of the anisotropy energy barriers of the individual superparamagnetic cores. In yet another embodiment, the superparamagnetic cores are close enough to interact magnetically by exchange coupling and dipole interaction. In still yet another embodiment, the specific loss power of the magnetic particle is greater than the specific loss power of an equivalent mass of individual superparamagnetic cores.

主权项

1. A multicore magnetic particle comprising:
a plurality of superparmagnetic cores embedded in a non-magnetic matrix, wherein the effective anisotropy energy barrier of the multicore magnetic particle is larger than the sum of the anisotropy energy barriers of the individual superparamagnetic cores.