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.
- 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
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