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- Title
Hidden transport phenomena in an ultraclean correlated metal.
- Authors
Brahlek, Matthew; Roth, Joseph D.; Zhang, Lei; Briggeman, Megan; Irvin, Patrick; Lapano, Jason; Levy, Jeremy; Birol, Turan; Engel-Herbert, Roman
- Abstract
Advancements in materials synthesis have been key to unveil the quantum nature of electronic properties in solids by providing experimental reference points for a correct theoretical description. Here, we report hidden transport phenomena emerging in the ultraclean limit of the archetypical correlated electron system SrVO3. The low temperature, low magnetic field transport was found to be dominated by anisotropic scattering, whereas, at high temperature, we find a yet undiscovered phase that exhibits clear deviations from the expected Landau Fermi liquid, which is reminiscent of strange-metal physics in materials on the verge of a Mott transition. Further, the high sample purity enabled accessing the high magnetic field transport regime at low temperature, which revealed an anomalously high Hall coefficient. Taken with the strong anisotropic scattering, this presents a more complex picture of SrVO3 that deviates from a simple Landau Fermi liquid. These hidden transport anomalies observed in the ultraclean limit prompt a theoretical reexamination of this canonical correlated electron system beyond the Landau Fermi liquid paradigm, and more generally serves as an experimental basis to refine theoretical methods to capture such nontrivial experimental consequences emerging in correlated electron systems. A correlated material SrVO3 has been considered to be a Fermi liquid, however previous studies have been limited to disordered samples. Here the authors study transport in ultraclean films of SrVO3, finding deviations from the Fermi liquid picture.
- Subjects
TRANSPORT theory; FERMI liquids; METAL-insulator transitions; LOW temperatures; MAGNETIC fields; HIGH temperatures
- Publication
Nature Communications, 2024, Vol 15, Issue 1, p1
- ISSN
2041-1723
- Publication type
Article
- DOI
10.1038/s41467-024-48043-4