Controlling magnetic charge landscapes in nanostructures: Novel approaches to nanomagnetic writing
File(s)
Author(s)
Carter-Gartside, Jack Nathaniel
Type
Thesis
Abstract
New tools for the the control and manipulation of magnetic charge landscapes are developed and
presented. Scanning probe systems fitted with magnetic tips are used to write 360 degree domain walls,
complex topological defects, and entire system-wide microstates in nanomagnetic arrays including
artificial spin ice. These new nanomagnetic writing techniques open previously inaccessible regions of the microstate space in artificial spin ice, including states exhibiting negative effective
temperatures and the elusive long-range ground state of kagome artificial spin ice.
presented. Scanning probe systems fitted with magnetic tips are used to write 360 degree domain walls,
complex topological defects, and entire system-wide microstates in nanomagnetic arrays including
artificial spin ice. These new nanomagnetic writing techniques open previously inaccessible regions of the microstate space in artificial spin ice, including states exhibiting negative effective
temperatures and the elusive long-range ground state of kagome artificial spin ice.
Version
Open Access
Date Issued
2017-09
Date Awarded
2018-03
Copyright Statement
Attribution NoDerivatives 4.0 International Licence (CC BY-ND)
Advisor
Branford, Will
Cohen, Lesley
Sponsor
Engineering and Physical Sciences Research Council
Grant Number
EP/G004765/1
Publisher Department
Physics
Publisher Institution
Imperial College London
Qualification Level
Doctoral
Qualification Name
Doctor of Philosophy (PhD)