skip to main content
US FlagAn official website of the United States government
dot gov icon
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
https lock icon
Secure .gov websites use HTTPS
A lock ( lock ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

Explore Research Products in the PAR
It may take a few hours for recently added research products to appear in PAR search results.


  • Home
  • Search Results
  • Page 1 of 1

Search for: All records

Creators/Authors contains: "Polski, Robert"

Note: When clicking on a Digital Object Identifier (DOI) number, you will be taken to an external site maintained by the publisher. Some full text articles may not yet be available without a charge during the embargo (administrative interval).
What is a DOI Number?

Some links on this page may take you to non-federal websites. Their policies may differ from this site.

  1. ; ; ; ; ; ; ; ; ; (, Nature)
    Full Text Available 
  2. ; ; ; ; ; ; ; ; ; (, Nature)
    Full Text Available 
  3. ; ; ; ; ; ; ; ; ; ; et al (, Science)
    Transport measurements indicate superconductivity in twisted trilayers, quadrilayers, and pentalayers of graphene. 
    more » « less
    Full Text Available 
  4. ; ; ; ; ; ; ; ; ; ; et al (, Nature Physics)
    Full Text Available 
  5. ; ; ; ; ; ; ; ; ; ; et al (, Nature)
    null (Ed.)
    Full Text Available 
  6. ; ; ; ; ; ; ; ; ; ; et al (, Nature)
    null (Ed.)
    Full Text Available 
  7. ; ; ; ; ; ; ; ; ; ; et al (, Nature Physics)
    Full Text Available 
  8. ; ; ; ; ; ; ; ; ; ; et al (, Nature physics)
    Twisted bilayer graphene with a twist angle of around 1.1° features a pair of isolated flat electronic bands and forms a platform for investigating strongly correlated electrons. Here, we use scanning tunnelling microscopy to probe the local properties of highly tunable twisted bilayer graphene devices and show that the flat bands deform when aligned with the Fermi level. When the bands are half-filled, we observe the development of gaps originating from correlated insulating states. Near charge neutrality, we find a previously unidentified correlated regime featuring an enhanced splitting of the flat bands. We describe this within a microscopic model that predicts a strong tendency towards nematic ordering. Our results provide insights into symmetry-breaking correlation effects and highlight the importance of electronic interactions for all filling fractions in twisted bilayer graphene. 
    more » « less
    Accepted Manuscript Full Text Available