Engineering 1D Quantum Stripes from Superlattices of 2D Layered Materials

John H Gruenewald; Jungho Kim; Heung Sik Kim; Jared M Johnson; Jinwoo Hwang; Maryam Souri; Jasminka Terzic; Seo Hyoung Chang; Ayman Said; Joseph W Brill; Gang Cao; Hae-Young Kee; Sung S Ambrose Seo

doi:10.1002/adma.201603798

Engineering 1D Quantum Stripes from Superlattices of 2D Layered Materials

Adv Mater. 2017 Jan;29(1). doi: 10.1002/adma.201603798. Epub 2016 Oct 27.

Authors

Affiliations

¹ Department of Physics and Astronomy, University of Kentucky, Lexington, KY, 40506, USA.
² Advanced Photon Source, Argonne National Laboratory, Argonne, IL, 60439, USA.
³ Department of Physics, University of Toronto, Toronto, Ontario, M5S 1A7, Canada.
⁴ Department of Materials Science and Engineering, The Ohio State University, Columbus, OH, 43210, USA.
⁵ Materials Science Division, Argonne National Laboratory, Argonne, IL, 60439, USA.

PMID: 27786379
DOI: 10.1002/adma.201603798

Abstract

Dimensional tunability from two dimensions to one dimension is demonstrated for the first time using an artificial superlattice method in synthesizing 1D stripes from 2D layered materials. The 1D confinement of layered Sr₂ IrO₄ induces distinct 1D quantum-confined electronic states, as observed from optical spectroscopy and resonant inelastic X-ray scattering. This 1D superlattice approach is generalizable to a wide range of layered materials.

Keywords: electronic structures/processes/materials; epitaxy; metamaterials; optically active materials; structure-property relationships; thin films.