rdf-syntax-grammar
mods:
  schema location: http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
  title info:
    title: Current-driven domain wall dynamics and its electric signature in ferromagnetic nanowires
  name:
    name part: Liu, Yang.
    role:
      role term: creator
  name:
    name part: Abanov, Artem
    role:
      role term: thesis advisor.
  name:
    name part: Sinova, Jairo
    role:
      role term: thesis advisor.
  type of resource: text
  genre: bibliography
  origin info:
    place:
      place term: txu
    date issued: 2012
    issuance: monographic
  language:
    language term: eng
  physical description:
    form: remote
    extent: 1 online resource.
  abstract: We study current-induced domain wall dynamics in a thin ferromagnetic nanowire. We derive the effective equations of domain wall motion, which depend on the wire geometry and material parameters. We describe the procedure to determine these parameters by all-electric measurements of the time-dependent voltage induced by the domain wall motion. We provide an analytical expression for the time variation of this voltage. Furthermore, we show that the measurement of the proposed effects is within reach with current experimental techniques. We also show that a certain resonant time-dependent current moving a domain wall can significantly reduce the Joule heating in the wire, and thus it can lead to a novel proposal for the most energy efficient memory devices. We discuss how Gilbert damping, non-adiabatic spin transfer torque, and the presence of Dzyaloshinskii-Moriya interaction can effect this power optimization. Furthermore, we propose a new nanodot magnetic device. We derive a specific time-dependent current that is needed to switch the magnetization of the nanodot the most efficiently.
  note: by Yang Liu.
  note: "Major Subject: Physics"
  note: Electronic resource.
  note: Master of Science Texas A&M University 2011 http://hdl.handle.net/1969.1/ETD-TAMU-2011-08-9980
  note: Includes bibliographical references.
  note: Text (Thesis)
  subject:
    topic: Major Physics
  subject:
    topic: Domain wall dynamics
  subject:
    topic: Domain wall dynamics measurement
  subject:
    topic: Power optimization
  subject:
    topic: Dzyaloshinskii-Moriya interaction
  subject:
    topic: Current-driven domain wall
  subject:
    topic: Spin transfer torque
  subject:
    topic: Domain wall
  subject:
    topic: Nanodot flipping
  subject:
    topic: Ferromagnetic nanowire
  identifier: http://hdl.handle.net/1969.1/ETD-TAMU-2011-08-9980
  record info:
    record content source: TXA
    record creation date: 121126
    record change date: 20150922145933.0
    record identifier: in00002784496