Noun
subparticle (plural subparticles)
(physics) A subatomic particle
At lower temperatures (350–600 °C), single particles crystallize however; at higher temperatures (600-1000 °C), the growth of crystalline aggregates with a subparticle structure is favored. Source: Internet
The origin of these high coercivity values has been interpreted as a consequence of the subparticle structure induced by the different particle and crystallite size growth rates at increasing annealing temperature. Source: Internet