Electron pairing in designer materials: A novel strategy for a negative effective Hubbard U

Melanie R. Butler*, Bijan Movaghar, Tobin J. Marks, Mark A. Ratner

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

We propose a set of design rules with a model Hamiltonian that allows electrons to form attracting pairs through the exploitation of a new combination of resonant band alignment and Coulombic repulsion. The pair bands and single particle bands in various lattices are calculated and compared in energy, and regions of net attraction are identified. This work provides guidelines for the construction of molecular systems, nanocrystals, and nanoparticle arrays with the potential for superconductivity.

Original languageEnglish (US)
Pages (from-to)1597-1602
Number of pages6
JournalNano letters
Volume15
Issue number3
DOIs
StatePublished - Mar 11 2015

Keywords

  • Electron correlation
  • Hubbard model
  • nanoparticle arrays
  • superconductivity
  • supramolecular lattices

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanical Engineering
  • Bioengineering
  • General Chemistry
  • General Materials Science

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