Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Direct Observation of Spin Configurations and Classification of Switching Processes in Mesoscopic Ferromagnetic Rings

Published

Author(s)

M Klaui, C Vaz, J Bland, T Monchesky, John Unguris, G R. SPELEEM, L J. Heyderman, Z Cui

Abstract

Using non-intrusive imaging techniques we have directly observed the nanoscopic details of the magnetization configurations of epitaxial and polycrystalline mesoscopic ring structures with <15 nm resolution. We have found head to head domain walls with different spin structures depending on ring width. Further, we can classify the geometry dependent switching processes according to the number of transitions (single, double, triple) that a ring undergoes in a hysteresis cycle. In the case of triple switching we find a novel state with a complete vortex core present in the ring.
Citation
Physical Review B (Condensed Matter and Materials Physics)
Volume
68
Issue
13

Keywords

micromagnetic, nanoscale, rings, SEMPA, SPELEEM, switching, vortex

Citation

Klaui, M. , Vaz, C. , Bland, J. , Monchesky, T. , Unguris, J. , SPELEEM, G. , Heyderman, L. and Cui, Z. (2003), Direct Observation of Spin Configurations and Classification of Switching Processes in Mesoscopic Ferromagnetic Rings, Physical Review B (Condensed Matter and Materials Physics), [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=620555 (Accessed June 18, 2024)

Issues

If you have any questions about this publication or are having problems accessing it, please contact reflib@nist.gov.

Created September 30, 2003, Updated October 12, 2021