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Více informací o knize Thermal Transport in Strongly Correlated Rare-Earth Intermetallic Compounds

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Nákupem získáte 331 bodů

Anotace knihy

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.

Parametry knihy

Zařazení knihy Knihy v angličtině Technology, engineering, agriculture Electronics & communications engineering Electronics engineering

• Plný název: Thermal Transport in Strongly Correlated Rare-Earth Intermetallic Compounds
• Autor: Heike Pfau
• Jazyk: Angličtina
• Vazba: Pevná
• Počet stran: 118
• EAN: 9783319395425
• ISBN: 3319395424
• ID: 02991843
• Nakladatelství: Springer International Publishing AG
• Hmotnost: 3376 g
• Rozměry: 235 × 155 × 12 mm
• Datum vydání: 20. July 2016

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