Bulletin of the American Physical Society
APS March Meeting 2022
Volume 67, Number 3
Monday–Friday, March 14–18, 2022; Chicago
Session Y48: Excited State VII: 2D materials and quantum materials
8:00 AM–10:48 AM,
Friday, March 18, 2022
Room: McCormick Place W-471A
Sponsoring Units: DCOMP DMP
Chair: Yuan Ping, UC Santa Cruz
Abstract: Y48.00012 : Tunable exciton states and optical properties of magnetic nanoribbons*
10:36 AM–10:48 AM
Hong Tang, Bimal Neupane, Santosh Neupane, and Adrienn Ruzsinszky
Department of Physics, Temple University, Philadelphia, PA 19122
Layered transition metal halides (TMH), such as CrX3 (X=Cl, Br or I), have amazing magnetic properties even with the thickness reduced down to a monolayer . It has been shown that the giant magneto-optical response is dominated by the excitonic effects in the CrI3 monolayer . With nanoribbons cut from monolayer transition metal dichalcogenide, the reduced spin-orbit coupling influences the characteristic of formatted exciton states . We use first-principles GW and Bethe-Salpeter equation calculations to investigate the excitonic states of magnetic nanoribbons. We show how the edge states re-shape the bound excitons and how this leads to dramatic change of the optical properties of these magnetic nanoribbons, which may have important applications in magneto-optical and optoelectronic devices.
Work is supported by the DOE-BES DE-SC0021263.
. Bevin Huang, Genevieve Clark, Efrén Navarro-Moratalla, et al. Nature,546, 270, 2017.
. Meng Wu 1,2, Zhenglu Li 1,2, Ting Cao 1,2 & Steven G. Louie, Nature communications, (2019) 10:2371.
. Hong Tang, Bimal Neupane, Santosh Neupane, Shiqi Ruan, Niraj K. Nepal, Adrienn Ruzsinszky, arXiv:2109.04551
*Work is supported by the DOE-BES DE-SC0021263.
Editorial Office 1 Research Road, Ridge, NY 11961-2701 (631) 591-4000
Office of Public Affairs 529 14th St NW, Suite 1050, Washington, D.C. 20045-2001 (202) 662-8700