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Research Highlight | Materials Science

A strange metal’ nickelate

In a study published in Science Advances, researchers report the fermiology and strange metal’ behavior of a planar trilayer nickelate to be similar to that of cuprate superconductors.

Scientific Achievement

ARPES studies on high-pO2 grown Pr4Ni3O8 crystals reveal similar fermiology and strange metal’ behavior found in cuprates. However, the carrier mass enhancement is twice as large, consistent with a more Ni-localized, Mott-like description of the carriers.

Significance and Impact

This work helps to clarify the central question of the similarities and differences in the electronic description nickelate and cuprate superconductors.

Research Details

  • ARPES measurements on single crystals revealed Fermi surface and allowed quantitative assessment of electron dynamics in this high-Tc analog.
  • Transport measurements correlate with these ARPES findings and confirm the non-Fermi liquid character of the carriers

DOI 10.1126/sciadv.ade4418

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