English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Two-dimensional electronic flat bands and their induced correlated electronicinteractions have been discovered, probed, and tuned in interlayer regions ofhexagonally shaped van der Waals moire superlattices. Fabrication ofanisotropic one-dimensional correlated bands by moire interference of 2D,however, remains a challenge. Here, we report an experimental discovery of 1Delectronic flat bands near the Fermi level in an anisotropic rectangular moiresuperlattice composed of in situ grown, vdW stacked two-atomic-layer thickBi(110) well-aligned on a SnSe(001) substrate. The epitaxial lattice mismatchbetween the aligned Bi and SnSe zigzag atomic chains causes strongthree-dimensional anisotropic atomic relaxations with associatedone-dimensional out-of- and in-plane strain distributions that are expressed inelectronic bands of the Bi(110) layer, which are characterized jointly byscanning probe microscopy and density functional theory. At the regions of thestrongest out-of-plane shear strain, a series of 1D flat bands near the Fermilevel are experimentally observed and defined in our calculations. We establishthat 1D flat bands can arise in moir\'e superlattices in absence of therelative layer twist, but solely through the lattice strain. We generalize thestrategy of utilizing strain in lattice mismatched rectangular hetero-bilayersfor engineering correlated anisotropic electronic bands.

Realization of one-dimensional electronic flat bands in an untwisted moire superlattice