Work

Phononic Stiefel–Whitney Topology with Hinge Vibrational Modes in 3D Carbon Allotrope 43T57-CA

Year: 2024

Type: article

Abstract: High Resolution Image Download MS PowerPoint Slide As a fragile topological state lacking spin–orbit coupling (SOC) and possessing space–time inversion ( PT ) symmetry, the Stiefel–Whitney (SW) insulator has received much attention. Up until now, the identification of SW insulators has been extensively suggested for 2D phononic systems but has been rarely considered for 3D phononic systems. 3D carbon allotrope 4 3 T57-CA has the capability to achieve nontrivial phononic SW topology, which can be distinguished by a nontrivial second SW number. Moreover, 3D 4 3 T57-CA can host hinge vibrational modes, which are protected by PT .

Source: ACS Omega

DOI: 10.1021/acsomega.4c08904

Author: Yang Li

Institutions: Chongqing University, Chongqing Youth Vocational & Technical College

Language: English

Topic: Topological Materials and Phenomena

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $1,935

Funder: Chongqing Municipal Education Commission