Enhanced Strange Metallicity due to Hubbard- U Coulomb Repulsion

Physical Review Letters, Journal Year: 2025, Volume and Issue: 134(3)

Published: Jan. 23, 2025

We solve a model of electrons with Hubbard-U Coulomb repulsion and random Yukawa coupling to two-dimensional bosonic bath, using an extended dynamical mean field theory scheme. Our exhibits quantum critical point, at which the repulsive component electron interactions strongly enhances effects fluctuations on electrons, leading breakdown Fermi liquid physics formation strange metal "Planckian" [O(kBT/ℏ)] quasiparticle decay rates low temperatures T→0. Furthermore, eventual Mott transition that occurs as is increased seemingly bounds maximum rate in metal. results provide insight into low-temperature metallicity observed proximity transition, observed, for instance, recent experiments certain moiré materials. locked icon Physics Subject Headings (PhySH)Dynamical theoryNon-Fermi-liquid theorySachdev-Ye-Kitaev

Language: Английский

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Current correlations and conductivity in SYK-like systems: An analytical study

Physical review. B./Physical review. B, Journal Year: 2025, Volume and Issue: 111(4)

Published: Jan. 6, 2025

Language: Английский

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Linear- T resistivity from spatially random vector coupling

Physical review. B./Physical review. B, Journal Year: 2025, Volume and Issue: 111(11)

Published: March 13, 2025

Language: Английский

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The foot, the fan, and the cuprate phase diagram: Fermi-volume-changing quantum phase transitions

Physica C Superconductivity, Journal Year: 2025, Volume and Issue: unknown, P. 1354707 - 1354707

Published: April 1, 2025

Language: Английский

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