Bulletin of the American Physical Society
APS March Meeting 2020
Volume 65, Number 1
Monday–Friday, March 2–6, 2020; Denver, Colorado
Session U49: Superconductivity: Response to Electromagnetic Fields (Optical and Raman Spectroscopy, Surface Impedance, Etc.)
2:30 PM–5:06 PM,
Thursday, March 5, 2020
Room: Mile High Ballroom 1B
Sponsoring
Unit:
DCMP
Chair: Richard Klemm, Univ of Central Florida
Abstract: U49.00012 : Non-linear Vortex Dynamics and Dissipation at High-amplitude Microwave Drive
Presenter:
Mattia Checchin
(Fermilab)
Authors:
Mattia Checchin
(Fermilab)
Anna Grassellino
(Fermilab)
Alexander Romanenko
(Fermilab)
Experimental data of vortex surface resistance in bulk niobium elliptical cavities as a function of frequency, trapped magnetic field value and field amplitude will be presented. Numerical calculations of non-linear vortex dynamics under microwave drive for different pinning landscapes allows to describe the mechanism underneath the electromagnetic field amplitude dependence of the surface resistance due to trapped vortices, pointing to the progressive microwave depinning as the most likely mechanism capable to generate such non-linearities.
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. |
© 2025 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