Bulletin of the American Physical Society
APS March Meeting 2014
Volume 59, Number 1
Monday–Friday, March 3–7, 2014; Denver, Colorado
Session D7: Focus Session: Magnetic Anisotropy
2:30 PM–5:30 PM,
Monday, March 3, 2014
Room: 106
Sponsoring
Units:
GMAG DMP
Chair: Weigang Wang, University of Arizona
Abstract ID: BAPS.2014.MAR.D7.5
Abstract: D7.00005 : FMR Linewidth divergence in V$_{2}$O$_{3}$/Ni bilayers*
3:42 PM–3:54 PM
Preview Abstract
Abstract
Authors:
Jose de la Venta
(Department of Physics, Colorado State University)
Juan Gabriel Ramirez
(Department of Physics and Center for Advanced Nanoscience, University of California San Diego)
Thomas Saerbeck
(Department of Physics and Center for Advanced Nanoscience, University of California San Diego)
Siming Wang
(Department of Physics and Center for Advanced Nanoscience, University of California San Diego)
Ivan K. Schuller
(Department of Physics and Center for Advanced Nanoscience, University of California San Diego)
The effects of stress on the magnetic properties of ferromagnetic thin films are dramatic when the ferromagnets are in proximity with materials undergoing structural phase transitions (SPT) [1]. Here we report on Ferromagnetic Resonance (FMR) measurements on V$_{2}$O$_{3}$/Ni bilayers across the SPT of V$_{2}$O$_{3}$. The SPT occurs on V$_{2}$O$_{3}$ at 160 K from a metallic/rhombohedral to an insulating/monoclinic phase. Our results reveal a rotation of the anisotropy axis in Nickel films when cooled below the SPT of V$_{2}$O$_{3}$. The obtained anisotropy axis will be compared to the underlying structural morphology obtained from x-ray diffraction. More interestingly, the FMR linewidth as a function of the temperature shows a divergence across the SPT. This suggests a breakdown of the uniform precession of the Ni magnetization caused by the induced strain across the SPT. Discussion among linewidth-broadening mechanisms will be addressed. \\[4pt] [1] J. de la Venta, S. Wang, J. G. Ramirez, and I. K. Schuller, Appl. Phys. Lett. 102, 122404 (2013).
*Work supported by Office of Basic Energy Science, U.S. Department of Energy, under Grant No. DE FG03-87ER-45332 and AFOSR grant number FA9550-12-1-0381.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2014.MAR.D7.5
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. |
© 2018 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
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