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Title: Dipolar ordering in assemblies of nanomagnets
Author: Martín, Xavier
Director/Tutor: Iglesias, Òscar
Keywords: Materials nanoestructurats
Treballs de fi de grau
Moments dipolars
Nanostructured materials
Bachelor's theses
Dipole moments
Issue Date: Jan-2016
Abstract: In this work, we have set up a computer code to simulate the magnetic equilibrium state of magnetic nanostrutures with different shapes. Dipolar interactions among the magnetic moments have been taken into account and an efficient algorithm to compute the fields during the Monte Carlo simulation has been devised. We have used the code to check the limits of validity of the macrospin approximation for the dipolar fields and we have applied it to study the ground states of assemblies of nanostructures. Finally, we show that simulations with atomistic detail are able to reproduce the known magnetic states in disc-shaped elements and find that the magnetic states of cubic nanoparticles can be tuned by their size in good agreement with experimental observations
Note: Treballs Finals de Grau de Física, Facultat de Física, Universitat de Barcelona, Curs: 2016, Tutor: Òscar Iglesias
Appears in Collections:Treballs Finals de Grau (TFG) - Física

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