2020/01/31 by F. Bernardini, Fabio Bernardini, A. Cano
Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Computer science #Condensed matter physics #Cuprate #Electronic and Structural Properties of Oxides #Electronic band structure #Electronic structure #Heterojunction #High-temperature superconductivity #Lanio #Magnetic and transport properties of perovskites and related materials #Materials science #Optoelectronics #Physics #Stability (learning theory) #Superconductivity #cond-mat.mtrl-sci #cond-mat.str-el #cond-mat.supr-con
paper · pdf · doi:10.1088/2515-7639/ab9d0f
published as J. Phys. Mater. 3, 03LT01 (2020) · 6 pages, 2 tables, 3 figures + Supplemental Material. v2: updated refs., extra figure + improved discussion of interfacial structure. v3: new appendix
openalex created_date 2020/01/23 · openalex publication_date 2020/06/15 · arxiv created 2020/06/18 · arxiv updated 2020/08/03 · openalex updated_date 2026/08/05
Abstract Infinite-layer nickelate thin films materialize an intriguing new platform for high-temperature unconventional superconductivity, with LaNiO 2 /SrTiO 3 as reference setup. We discuss the relative stability of the elementary interfaces of this system and determine the corresponding electronic band structure. We find substantial changes compared to the bulk, in particular in relation to the 5 d orbital contributions to the low-energy physics which can be totally replaced by purely Ni-3 d flat bands. The d 9 configuration characteristic of cuprates can thus be supplemented by an extra interfacial ingredient destabilizing the normal non-superconducting state in these heterostructures.