By showing physical reactivity to a magnetic field, that is, array variability, instant self-assembly can be realized, and based on the array variability by applying such a magnetic field, it can be manufactured into a three-dimensional structure through a significantly simplified process compared to the prior art A core as magnetic plasmon particles that can be used in various technical fields because it is easy to additionally change or adjust the geometry of the three-dimensional structure; And a shell surrounding at least a part of the surface of the core and including a component of the core and a component of a different kind; including core-shell particles, and having an array variability by applying a magnetic field Provides magnetic plasmon particles.
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