Coulomb engineering of two-dimensional Mott materials.
NPJ 2D Mater Appl
; 7(1): 47, 2023.
Article
em En
| MEDLINE
| ID: mdl-38665482
ABSTRACT
Two-dimensional materials can be strongly influenced by their surroundings. A dielectric environment screens and reduces the Coulomb interaction between electrons in the two-dimensional material. Since in Mott materials the Coulomb interaction is responsible for the insulating state, manipulating the dielectric screening provides direct control over Mottness. Our many-body calculations reveal the spectroscopic fingerprints of such Coulomb engineering we demonstrate eV-scale changes to the position of the Hubbard bands and show a Coulomb engineered insulator-to-metal transition. Based on our proof-of-principle calculations, we discuss the (feasible) conditions under which our scenario of Coulomb engineering of Mott materials can be realized experimentally.
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MEDLINE
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En
Ano de publicação:
2023
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Article