Overview
- Nominated as an outstanding Ph.D. thesis by the Max Planck Institute for the Chemical Physics of Solids, Dresden
- Presents innovative experiments at extraordinarily low temperatures
- Sheds new light on the interplay of Kondo physics and Fermi surface changes
- Includes supplementary material: sn.pub/extras
Part of the book series: Springer Theses (Springer Theses)
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Table of contents (7 chapters)
Keywords
About this book
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.
Authors and Affiliations
Bibliographic Information
Book Title: Thermal Transport in Strongly Correlated Rare-Earth Intermetallic Compounds
Authors: Heike Pfau
Series Title: Springer Theses
DOI: https://doi.org/10.1007/978-3-319-39543-2
Publisher: Springer Cham
eBook Packages: Physics and Astronomy, Physics and Astronomy (R0)
Copyright Information: Springer International Publishing Switzerland 2016
Hardcover ISBN: 978-3-319-39542-5Published: 02 August 2016
Softcover ISBN: 978-3-319-81910-5Published: 30 May 2018
eBook ISBN: 978-3-319-39543-2Published: 20 July 2016
Series ISSN: 2190-5053
Series E-ISSN: 2190-5061
Edition Number: 1
Number of Pages: XXI, 118
Number of Illustrations: 14 b/w illustrations, 32 illustrations in colour
Topics: Strongly Correlated Systems, Superconductivity, Metallic Materials