A counterexample to the conjectured Planckian bound on transport

Abstract

It has recently been conjectured that the transport relaxation rate in metals is bounded above by the temperature of the system. In this work, we discuss the transport phenomenology of overdoped electron-doped cuprates, which we show constitute an unambiguous counterexample to this putative "Planckian" bound, raising serious questions about the efficacy of the bound.

arXiv comment5 pages, 3 figures

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Cited by in corpus (6)

• Planckian Dissipation in Metals
• Non-Fermi liquid phase and linear-in-temperature scattering rate in overdoped two dimensional Hubbard model
• Planckian properties of 2D semiconductor systems
• Violation of Luttinger's theorem in the simplest doped Mott insulator: Falicov-Kimball model in strong correlation limit
• Planckian Dissipation and non-Ginzburg-Landau Type Upper Critical Field in Bi2201
• Stranger than Metals