Decorated Ising nanoparticles with high critical temperature
T. Kaneyoshi
Abstract
The phase transitions of two magnetic nanoparticles and their decorated nanoparticles are examined by the effective-field theory with correlations. They are consisted of two isolated paramagnetic Ising nanoparticles coupled by an exchange interaction. It is discussed whether a ferromagnetic nanoparticle with a transition temperature TC(N) larger than that (TC(B)) of a bulk ferromagnetic material is possible.
Topics & Concepts
FerromagnetismIsing modelNanoparticleCondensed matter physicsParamagnetismPhase transitionMaterials scienceMagnetic nanoparticlesNanotechnologyPhysicsTheoretical and Computational PhysicsQuantum many-body systemsMaterial Dynamics and Properties