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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.

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Spelling suggestions: "subject:"concurrent effect"" "subject:"biascurrent effect""

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Theoretical determination of electric field-magnetic field phase diagrams of the multiferroic bismuth ferrite

Allen, Marc Alexander 28 August 2014 (has links)
Bismuth ferrite (BFO) is a multiferroic material with cross-correlation between magnetic and electric orders. With no applied external fields the spin structure of BFO is anitferromagnetic and cycloidal. This ordering prevents the detection of the weak ferromagnetism known to exist in the material. The application of magnetic and electric fields of suitable strength and direction is capable of compelling the Fe3+ spins to align in a homogeneous, antiferromagnetic fashion. This report details how numerical methods were used to simulate the spin alignment of a BFO system under different fields. The results were compiled into electric field-magnetic field phase diagrams of BFO to show the divide between cycloidal and homogeneous systems. / Graduate / 0607 / 0611 / marca@uvic.ca
bismuth ferrite
multiferroic
magnetism
ferroelectricity
antiferromagentism
numerical methods
condensed matter
magnetoelectric effect
Dzyaloshinskii-Moriya interaction
spin-current effect
weak ferromagnetism
electric field
magnetic field
BFO
BiFeO3

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