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: Thermal Transport in Strongly Correlated Rare-Earth Intermetallic Compounds
  name:
    name part: Pfau, Heike.
    role:
      role term: creator
    role:
      role term: author.
  name:
    name part: SpringerLink (Online service)
  type of resource: text
  origin info:
    place:
      place term: gw
    date issued: 2016
    issuance: monographic
  language:
    language term: eng
  physical description:
    form: electronic
    form: electronic resource
    reformatting quality: access
    form: remote
    extent: XXI, 118 p. 46 illus., 32 illus. in color. online resource.
  abstract: This thesis explores thermal transport in selected rare-earth-based intermetallic compounds to answer questions of great current interest. It also sheds light on the interplay of Kondo physics and Fermi surface changes. By performing thermal conductivity and electrical resistivity measurements at temperatures as low as 25mK, the author demonstrates that the Wiedemann–Franz law, a cornerstone of metal physics, is violated at precisely the magnetic-field-induced quantum critical point of the heavy-fermion metal YbRh2Si2. This first-ever observation of a violation has dramatic consequences, as it implies a breakdown of the quasiparticle picture. Utilizing an innovative technique to measure low-temperature thermal transport isothermally as a function of the magnetic field, the thesis interprets specific, partly newly discovered, high-field transitions in CeRu2Si2 and YbRh2Si2 as Lifshitz transitions related to a change in the Fermi surface. Lastly, by applying this new technique to thermal conductivity measurements of the skutterudite superconductor LaPt4Ge12, the thesis proves that the system is a conventional superconductor with a single energy gap. Thus, it refutes the widespread speculations about unconventional Cooper pairing in this material. .
  table of contents: Introduction -- Theoretical Models -- Experimental Techniques for Transport Measurements -- The Wiedemann-Franz Law in YbRh2Si2 -- Kondo Lattices in Magnetic Field -- The Superconducting Order Parameter of LaPt4Ge12 -- Summary and Outlook.
  note: by Heike Pfau.
  subject:
    topic: Physics
  subject:
    topic: Superconductivity
  subject:
    topic: Superconductors
  subject:
    topic: Metals
  subject:
    topic: Physics
  subject:
    topic: Strongly Correlated Systems, Superconductivity
  subject:
    topic: Metallic Materials
  classification: QC611.9-611.98
  classification: 530.41
  related item:
    title info:
      title: Springer eBooks
  related item:
    title info:
      title: Springer Theses, Recognizing Outstanding Ph.D. Research
  identifier: 9783319395432
  identifier: http://dx.doi.org/10.1007/978-3-319-39543-2
  record info:
    record creation date: 160720
    record change date: 20160720093330.0
    record identifier: 978-3-319-39543-2