2013/04/05 by Myung Joon Han, Han, Myung Joon, Michel van Veenendaal +1
Physics and Astronomy · #FOS: Physical sciences #Materials Science (cond-mat.mtrl-sci) #cond-mat.mtrl-sci
paper · pdf · doi:10.48550/arxiv.1304.1615
8pages, 4 figures J. Phys.: Condens. Matter (accepted)
arxiv created 2014/01/17 · arxiv updated 2014/01/20
By using first-principles density functional theory calculations for (LaNiO3)m/(SrTiO3)n superlattices, we report a systematic way of electronic response to the interface geometry. It is found that Fermi level density of states of metallic nickelate layers is significantly reduced without charge transfer in the vicinity of interface to the insulating SrTiO3. This type of electronic state redistribution is clearly distinctive from other interface phenomena such as charge and orbital reconstruction. Our result sheds new light towards understanding the nickelates and other transitionmetal oxide heterostructures.