Unusual temperature dependence of the spectral weight near the Fermi level of NdNiO3 thin films

Abstract

We investigate the behavior of the spectral weight near the Fermi level of NdNiO3 thin films as a function of temperature across the metal-to-insulator transition (MIT) by means of ultraviolet photoelectron spectroscopy. The spectral weight was found to exhibit thermal hysteresis, similar to that of the dc conductivity. A detailed analysis of the temperature dependence reveals two distinct regimes of spectral loss close to the Fermi level. The temperature evolution of one regime is found to be independent from the MIT.

References in corpus (4)

• Site-selective Mott transition in rare earth nickelates
• Role of magnetic and orbital ordering at the metal-insulator transition in NdNiO3
• Low energy theory of the t-t'-t''-U Hubbard Model at half-filling: interaction strengths in cuprate superconductors and an effective spin-only description of La_2CuO_4
• Effect of strong localization of doped holes in angle-resolved photoemission spectra of La${}_{1-x}$Sr${}_x$FeO${}_3$

Cited by in corpus (4)

• Tuning the metal-insulator transition in NdNiO3 heterostructures via Fermi surface instability and spin-fluctuations
• Anomalous electron transport in epitaxial NdNiO${}_3$ films
• Cooling a polaronic liquid: Phase mixture and pseudogap-like spectra in superconducting $B{a}_{1-x}{K}_{x}Bi{O}_3$
• Gaps and pseudo-gaps at the Mott quantum Critical point in the perovskite rare earth nickelates