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MM: Fachverband Metall- und Materialphysik
MM 9: Poster
MM 9.43: Poster
Montag, 17. März 2025, 18:30–20:30, P1
(Very) high-temperature physics of selected Planckian metals — •Zuzanna Helena Filipiak1,2 and Andrew P. Mackenzie1,2 — 1Max-Planck Institute for Chemical Physics of Solids, Dresden, Germany — 2Scottish Universities Physics Alliance, School of Physics and Astronomy, University of St Andrews, United Kingdom
Planckian dissipation is the mysterious phenomenon of an almost universal saturation of the electron scattering rate in many condensed matter systems despite their vastly different microscopics and strengths of electron interactions. In crystalline samples, the Planckian temperature dependence of resistivity is referred to as strange metallicity in the low-temperature regime and bad metallicity if the behaviour continues to high temperatures. Despite interest in such materials because of their unique physics, their high-temperature characteristics continues to be understudied. We developed two setups in which resistivity of a metallic sample is measured as a function of temperature (ranging from 2 to 1000 K), magnetic field (up to 12 T) and atmosphere (oxygen-rich, argon, high vacuum). Our results for selected single-crystal and thin-film samples of metallic delafossites, nickelates and ruthenates, incl. ruthenium dioxide, will be presented.
Keywords: Planckian scattering; resistivity; correlated electrons; transition metal oxides