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Linear-T resistivity from spatially random vector coupling
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DOI：10.1103/PhysRevB.111.115135.png)
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摘要
En 中文
Recently, Patel et al. Science 381, 790 (2023) introduced a higher-dimensional version of the SYK model with random coupling in a Yukawa interaction to explain the linear-T resistivity. We test the universality of this mechanism by replacing the scalar field with a vector field in various dimensions. We find that it applies to vector and scalar interactions, although the details differ significantly. However, this mechanism for linear-T resistivity works only in (2 + 1) dimensions and not in higher dimensions, regardless of the interaction type. Based on these results, we explore the role of spatial random disorder and provide a simple explanation of how such random scattering transforms a Fermi liquid into a strange metal by modifying the self-energies of the involved bosons and fermions.
Keyword:
GAUGE-THEORY
SUPERCONDUCTIVITY
FERMIONS
STATE
