| Autor: |
Bashan N; Department of Condensed Matter Physics, Weizmann Institute of Science, Rehovot 76100, Israel., Tulipman E; Department of Condensed Matter Physics, Weizmann Institute of Science, Rehovot 76100, Israel., Schmalian J; Karlsruher Institut für Technologie, Institut für Theorie der Kondensierten Materie, 76049 Karlsruhe, Germany.; Karlsruher Institut für Technologie, Institut für Quantenmaterialien und Technologien, 76021 Karlsruhe, Germany., Berg E; Department of Condensed Matter Physics, Weizmann Institute of Science, Rehovot 76100, Israel. |
| Jazyk: |
angličtina |
| Zdroj: |
Physical review letters [Phys Rev Lett] 2024 Jun 07; Vol. 132 (23), pp. 236501. |
| DOI: |
10.1103/PhysRevLett.132.236501 |
| Abstrakt: |
We study a controlled large-N theory of electrons coupled to dynamical two-level systems (TLSs) via spatially random interactions. Such a physical situation arises when electrons scatter off low-energy excitations in a metallic glass, such as a charge or stripe glass. Our theory is governed by a non-Gaussian saddle point, which maps to the celebrated spin-boson model. By tuning the coupling strength we find that the model crosses over from a Fermi liquid at weak coupling to an extended region of non-Fermi liquid behavior at strong coupling, and realizes a marginal Fermi liquid at the crossover. Our results are valid for generic space dimensions d>1. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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