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Study of Magnetic Nanostructures using Micromagnetic Simulations and Monte Carlo Methods
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Materials Physics.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Materials Physics.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Materials Physics.
2014 (English)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

We perform micromagnetic simulations in MuMax3 on various magneticnanostructures to study their magnetic state and response to external fields. Theinteraction and ordering of nanomagnetic arrays is investigated by calculating themagnetostatic energies for various configurations. These energies are then used inMonte Carlo simulation to study the thermal behaviour of systems of nanomagneticarrays. We find that the magnetic state of the nanostructures are related to theirshape and size and furthermore affect the emergent properties of the system, givingrise to temperature dependent ordering among the individual structures. Results fromboth micromagnetic and statistical mechanic simulations agree well with availableexperimental data, although the Monte Carlo algorithm encounter problems at lowsimulation temperatures.

Place, publisher, year, edition, pages
2014. , 23 p.
Series
TVE, TVE 14 028 juni
Keyword [en]
frustration, magnets, spin ice, hysteresis, monte carlo, simulation, vortex, micromagnetics, metropolis
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:uu:diva-227804OAI: oai:DiVA.org:uu-227804DiVA: diva2:731423
Educational program
Master Programme in Engineering Physics
Supervisors
Examiners
Available from: 2014-08-13 Created: 2014-07-01 Last updated: 2014-08-13Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
  • ieee
  • modern-language-association
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Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
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  • Other locale
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Output format
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