Journal
AIP ADVANCES
Volume 2, Issue 1, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3685590
Keywords
-
Funding
- U.S. Department of Energy, Office of Basic Energy Sciences, Materials Sciences and Engineering Division [DE-SC0005313]
- Army Research Office
- National Nanotechnology Infrastructure Network
- REU Supplement to NSF [DMR-0701582]
Ask authors/readers for more resources
We study permalloy nanorings that are lithographically fabricated with narrow gaps that break the rotational symmetry of the ring while retaining the vortex ground state, using both micromagnetic simulations and magnetic force microscopy (MFM). The vortex chirality in these structures can be readily set with an in-plane magnetic field and easily probed by MFM due to the field associated with the gap, suggesting such rings for possible applications in storage technologies. We find that the gapped ring edge characteristics (i.e., edge profile and gap shape) are critical in determining the magnetization switching field, thus elucidating an essential parameter in the controls of devices that might incorporate such structures. Copyright 2012 Author(s). This article is distributed under a Creative Commons Attribution 3.0 Unported License. [doi:10.1063/1.3685590]
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available