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

doi:10.1021/nl5041176

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

Chemistry

Research output: Contribution to journal › Article › peer-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 language	English (US)
Pages (from-to)	1597-1602
Number of pages	6
Journal	Nano letters
Volume	15
Issue number	3
DOIs	https://doi.org/10.1021/nl5041176
State	Published - Mar 11 2015

Funding

Acknowledgements This work was supported by the Foundation for University Key Teacher by Education the National Natural Science Foundation of China (Grant No. 19831080).

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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10.1021/nl5041176

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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.",

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AU - Marks, Tobin J.

AU - Ratner, Mark A.

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AB - 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.

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KW - Hubbard model

KW - nanoparticle arrays

KW - superconductivity

KW - supramolecular lattices

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

Abstract

Funding

Keywords

ASJC Scopus subject areas

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