Gaps and pseudogaps in perovskite rare earth nickelates

Gaps and pseudogaps in perovskite rare earth nickelates

We report on tunneling measurements that reveal the evolution of the quasiparticle state density in two rare earth perovskite nickelates, NdNiO3 and LaNiO3, that are close to a bandwidth controlled metal to insulator transition. We measure the opening of a sharp gap of ∼30 meV in NdNiO3 in its insul...

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Bibliographic Details
Main Authors: S. James Allen, Adam J. Hauser, Evgeny Mikheev, Jack Y. Zhang, Nelson E. Moreno, Junwoo Son, Daniel G. Ouellette, James Kally, Alex Kozhanov, Leon Balents, Susanne Stemmer
Format: Article
Language:English
Published: AIP Publishing LLC 2015-06-01
Series:APL Materials
Online Access:http://dx.doi.org/10.1063/1.4907771

Internet

http://dx.doi.org/10.1063/1.4907771

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