Magnetic-force microscope study of the micromagnetics of submicron magnetic particles

Gary A. Gibson; Sheldon Schultz; Wenjie Chen; D. R. Fredkin

doi:10.1117/12.58181

1 May 1992 Magnetic-force microscope study of the micromagnetics of submicron magnetic particles

Gary A. Gibson, Sheldon Schultz, Wenjie Chen, D. R. Fredkin

Proceedings Volume 1639, Scanning Probe Microscopies; (1992) https://doi.org/10.1117/12.58181
Event: OE/LASE '92, 1992, Los Angeles, CA, United States

Abstract

A high resolution, high sensitivity magnetic force microscope (MFM) with the ability to image in an in situ magnetic field will be described. This MFM has been used to investigate the micromagnetics of nanolithographically produced magnetic particles. It will be shown that the particles' switching field can be determined without being perturbed by the stray fields from the sensing tip. This allows the study of the evolution of the particles' magnetic states as a function of applied field and the direct observation of cooperative switching. The MFM has also been used, in conjunction with an external biasing field, as a localized source of flux for testing the stability of magnetic states and setting model magnetic configurations. MFM images of the particles are compared with numerical simulations. These comparisons have also provided insight into the magnetic behavior of the MFM sensing tips.

Citation Download Citation

Gary A. Gibson, Sheldon Schultz, Wenjie Chen, and D. R. Fredkin "Magnetic-force microscope study of the micromagnetics of submicron magnetic particles", Proc. SPIE 1639, Scanning Probe Microscopies, (1 May 1992); https://doi.org/10.1117/12.58181

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available