MANIPULATION OF MAGNETIC VORTEX DYNAMICS REVEALED BY OPTICAL AND SINGLE-SPIN MICROSCOPY

MANIPULATION OF MAGNETIC VORTEX DYNAMICS REVEALED BY OPTICAL AND SINGLE-SPIN MICROSCOPY

Bibliographic Details
Main Author: Badea, Robert
Language:English
Published: Case Western Reserve University School of Graduate Studies / OhioLINK 2019
Subjects:
Physics
Optics
Quantum Physics
Online Access:http://rave.ohiolink.edu/etdc/view?acc_num=case1544017306999889
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spelling ndltd-OhioLink-oai-etd.ohiolink.edu-case15440173069998892021-08-03T07:09:15Z MANIPULATION OF MAGNETIC VORTEX DYNAMICS REVEALED BY OPTICAL AND SINGLE-SPIN MICROSCOPY Badea, Robert Physics Optics Quantum Physics In this thesis we study the magnetodynamics of a ferromagnetic vortex state confined by a thin film microdisk. The vortex state is a topological defect spin configuration and is an exciting platform for many potential applications including spintronic devices, information processing, biomedical technology, and spin-qubit integrated systems. We use sensitive differential magneto-optical Kerr effect and single-spin microscopy to probe the dynamics of the vortex core allowing us to identify and characterize the pinning landscape through which it traverses. We then develop protocols for fast nanosecond time scale translation of the vortex core between neighboring stable pinning sites. With these tools developed we ultimately use the vortex core to coherently manipulate a spin qubit. By coupling the qubit to the vortex state we enhance level splitting and spin dynamics allowing us to perform a more efficient adiabatic passage operation. 2019-01-29 English text Case Western Reserve University School of Graduate Studies / OhioLINK http://rave.ohiolink.edu/etdc/view?acc_num=case1544017306999889 http://rave.ohiolink.edu/etdc/view?acc_num=case1544017306999889 unrestricted This thesis or dissertation is protected by copyright: all rights reserved. It may not be copied or redistributed beyond the terms of applicable copyright laws.
collection NDLTD
language English
sources NDLTD
topic Physics
Optics
Quantum Physics
spellingShingle Physics
Optics
Quantum Physics
Badea, Robert
MANIPULATION OF MAGNETIC VORTEX DYNAMICS REVEALED BY OPTICAL AND SINGLE-SPIN MICROSCOPY
author Badea, Robert
author_facet Badea, Robert
author_sort Badea, Robert
title MANIPULATION OF MAGNETIC VORTEX DYNAMICS REVEALED BY OPTICAL AND SINGLE-SPIN MICROSCOPY
title_short MANIPULATION OF MAGNETIC VORTEX DYNAMICS REVEALED BY OPTICAL AND SINGLE-SPIN MICROSCOPY
title_full MANIPULATION OF MAGNETIC VORTEX DYNAMICS REVEALED BY OPTICAL AND SINGLE-SPIN MICROSCOPY
title_fullStr MANIPULATION OF MAGNETIC VORTEX DYNAMICS REVEALED BY OPTICAL AND SINGLE-SPIN MICROSCOPY
title_full_unstemmed MANIPULATION OF MAGNETIC VORTEX DYNAMICS REVEALED BY OPTICAL AND SINGLE-SPIN MICROSCOPY
title_sort manipulation of magnetic vortex dynamics revealed by optical and single-spin microscopy
publisher Case Western Reserve University School of Graduate Studies / OhioLINK
publishDate 2019
url http://rave.ohiolink.edu/etdc/view?acc_num=case1544017306999889
work_keys_str_mv AT badearobert manipulationofmagneticvortexdynamicsrevealedbyopticalandsinglespinmicroscopy
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