What question did this study set out to answer?

This research aims to explore the crossover of Fermi-liquid to strange-metal behavior in kagome flat-band metals.

March 30, 2026Open Access

Strange Metallicity as K-Factorization: Compact Molecular Orbitals, Kramers Coherence Barriers, and the Universality of Planckian Dissipation in Kagome Flat-Band Metals

Key Points

This research aims to explore the crossover of Fermi-liquid to strange-metal behavior in kagome flat-band metals.
Analysis of Kramers coherence barriers and their impact on electronic states
Characterization of localized states arising from destructive interference
Examination of transport properties across different kagome materials.
Identified universality in transport associated with molecular orbitals
Established the role of Kramers coherence barriers in defining electronic behavior
Demonstrated K-Factorization extending to diverse kagome flat-band metals.

Abstract

The Fermi-liquid to strange-metal crossover in kagome flat-band metals is a Kramers coherence barrier Eb = K · σ (c), where compact localized states from destructive interference define the opacity coordinate and σ (c) is K-independent. Predicts σ (c) universality across Ni₃In, CoSn, Fe₃Sn₂, CsV₃Sb₅, extending K-Factorization to condensed matter transport with zero framework rubric.

Strange Metallicity as K-Factorization: Compact Molecular Orbitals, Kramers Coherence Barriers, and the Universality of Planckian Dissipation in Kagome Flat-Band Metals

Key Points

Abstract

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