Competing Electronic and Structural Effects In The Metal-Insulator Transition of Bulk and Layer-Confined RNiO$_3$

  title={Competing Electronic and Structural Effects In The Metal-Insulator Transition of Bulk and Layer-Confined RNiO\$\_3\$},
  author={Alexandru B. Georgescu and Oleg E. Peil and Ankit S. Disa and Antoine Georges and Andrew J. Millis},
Metal-insulator transitions typically involve changes both in lattice and in electronic structure. In this paper, we compare the transitions of bulk and heterostructured rare earth nickelate materials. We show that a method that has been recently applied to bulk nickelates can be used to separate the effects of layer confinement on the electronic structure from the effect of the epitaxial constraint on the lattice structure. Our work provides insights into the relative importance of electronic… 
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