Journal article

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

  • Schwier, Eike Fabian Département de Physique and Fribourg Center for Nanomaterials, University of Fribourg, Switzerland
  • Scherwitzl, R. Département de Physique de la Matière Condensée, University of Geneva, Switzerland
  • Vydrovà, Z. Département de Physique and Fribourg Center for Nanomaterials, University of Fribourg, Switzerland
  • García-Fernández, Mirian Département de Physique and Fribourg Center for Nanomaterials, University of Fribourg, Switzerland
  • Gibert, M. Département de Physique de la Matière Condensée, University of Geneva, Switzerland
  • Zubko, P. Département de Physique de la Matière Condensée, University of Geneva, Switzerland
  • Garnier, Michael G. Département de Physique and Fribourg Center for Nanomaterials, University of Fribourg, Switzerland
  • Triscone, J.-M. Département de Physique de la Matière Condensée, University of Geneva, Switzerland
  • Aebi, Philipp Département de Physique and Fribourg Center for Nanomaterials, University of Fribourg, Switzerland
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    30.11.2012
Published in:
  • Physical Review B - Condensed Matter and Materials Physics. - 2012, vol. 86, no. 19, p. 195147
English 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 of the MIT.
Faculty
Faculté des sciences
Department
Physique
Language
  • English
Classification
Physics
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https://folia.unifr.ch/unifr/documents/302693
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