Spontaneous Electric Polarization in Graphene Polytypes

• Published in: Advanced Physics Research Vol. 3; no. 5
• Main Authors: Atri, Simon Salleh, Cao, Wei, Alon, Bar, Roy, Nirmal, Stern, Maayan Vizner, Falko, Vladimir, Goldstein, Moshe, Kronik, Leeor, Urbakh, Michael, Hod, Oded, Ben Shalom, Moshe
• Format: Journal Article
• Language: English
• Published: Edinburgh John Wiley & Sons, Inc 01.05.2024; Wiley-VCH
• Subjects: Broken symmetry; Charge transfer; Crystals; Doping; Electric polarization; Electrons; First principles; Graphene; graphene polytypes; interfacial ferroelectricity; Polarization; Polytypes; Room temperature; Symmetry; Unit cell

Spontaneous electric polarization is recently observed in multilayered van der Waals stacked materials, arising from a symmetry breaking in a unit cell with two or more constituent species, or non‐centrosymmetric intra‐layer atom displacement in single‐atom‐species materials. Here, it is shown that...