Work

Superlubric Graphullerene

Year: 2024

Type: article

Abstract: High Resolution Image Download MS PowerPoint Slide Graphullerene (GF), an extended quasi-two-dimensional network of C 60 molecules, is proposed as a multicontact platform for constructing superlubric interfaces with layered materials. Such interfaces are predicted to present very small and comparable sliding energy corrugation regardless of the identity of the underlying flat layered material surface. It is shown that, beyond the geometrical effect, covalent interlinking between the C 60 molecules results in reduction of the sliding energy barrier. For extended GF supercells, negligible sliding energy barriers are found along all sliding directions considered, even when compared to the case of the robust superlubric graphene/h-BN heterojunction. This suggests that multicontact architectures can be used to design ultrasuperlubric interfaces, where superlubricity may persist under extreme sliding conditions.

Source: Nano Letters

DOI: 10.1021/acs.nanolett.4c02794

Authors: Penghua Ying, Oded Hod, Michael Urbakh

Institution: Tel Aviv University

Language: English

Topic: Force Microscopy Techniques and Applications

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $4,500