Bulletin of the American Physical Society
APS March Meeting 2021
Volume 66, Number 1
Monday–Friday, March 15–19, 2021; Virtual; Time Zone: Central Daylight Time, USA
Session X52: Magnetic Topological Materials 8: New Materials
8:00 AM–11:00 AM,
Friday, March 19, 2021
Sponsoring
Units:
DMP GMAG
Chair: Jonathan Gaudet, Johns Hopkins University
Abstract: X52.00006 : Breaking Lorentz Reciprocity in the Weyl Semimetal Co3Sn2S2 to Enable Time-Asymmetric Photonics*
9:00 AM–9:12 AM
Live
Presenter:
Arun Nagpal
(Applied Physics and Materials Science, California Institute of Technology)
Authors:
Arun Nagpal
(Applied Physics and Materials Science, California Institute of Technology)
Dennis Nenno
(John A. Paulson School of Engineering & Applied Science, Harvard University)
Christina Garcia
(John A. Paulson School of Engineering & Applied Science, Harvard University)
Chandra Shekhar
(Max Planck Institute for the Chemical Physics of Solids)
Claudia Felser
(Max Planck Institute for the Chemical Physics of Solids)
Prineha Narang
(John A. Paulson School of Engineering & Applied Science, Harvard University)
Harry Atwater
(Applied Physics and Materials Science, California Institute of Technology)
Here we use electromagnetic and ab initio simulations, and experimental measurements of infrared light scattering to demonstrate the breaking of Lorentz reciprocity in the ferromagnetic phase of Co3Sn2S2 through calculations and measurement of nonequivalent reflection coefficients of opposing channels. We measure, via ellipsometry, the components of the dielectric tensor and discuss the implications of this result on the feasibility of magnetic Weyl semimetals for time-asymmetric photonics applications.
[1] B. Zhao, et al., Nano Lett, 20, 3, 1923-1927(2020).
[2] D. M. Nenno, et al., Nat Rev Phys (2020).
*- Department of Energy ‘Photonics at Thermodynamic Limits’ Energy Frontier Research Center Grant No DE-SC0019140
- Department of Energy Office of Science National Energy Research Scientific Computing Center (NERSC) Contract No DE-AC02-05CH11231
Follow Us |
Engage
Become an APS Member |
My APS
Renew Membership |
Information for |
About APSThe American Physical Society (APS) is a non-profit membership organization working to advance the knowledge of physics. |
© 2024 American Physical Society
| All rights reserved | Terms of Use
| Contact Us
Headquarters
1 Physics Ellipse, College Park, MD 20740-3844
(301) 209-3200
Editorial Office
100 Motor Pkwy, Suite 110, Hauppauge, NY 11788
(631) 591-4000
Office of Public Affairs
529 14th St NW, Suite 1050, Washington, D.C. 20045-2001
(202) 662-8700