Magnetic domain formation in lithographically defined antidot Permalloy arrays
- 28 April 1997
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 70 (17), 2309-2311
- https://doi.org/10.1063/1.118845
Abstract
The magnetic switching of a continuous Permalloy film is artificially modified by lithographically structuring an antidot array. The antidots introduce a spatially variant shape anisotropy field that competes with the intrinsic uniaxial anisotropy of the continuous film. This results in a well-defined periodic domain structure at remanence as observed by scanning Kerr microscopy, and which could be significant for high-density data storage. A micromagnetic calculation explains the structure and indicates optimum anisotropy conditions for data storage applications.Keywords
This publication has 8 references indexed in Scilit:
- Nanoscale Magnetic Domains in Mesoscopic MagnetsScience, 1996
- Size dependence of the magnetoresistance in submicron FeNi wiresJournal of Applied Physics, 1996
- Magnetization reversal in patterned Co(0001) ultrathin films with perpendicular magnetic anisotropyJournal of Applied Physics, 1996
- Complex Dynamics of Mesoscopic MagnetsPhysics Today, 1995
- Magnetic wire and box arrays (invited)Journal of Applied Physics, 1994
- Size effects on switching field of isolated and interactive arrays of nanoscale single-domain Ni bars fabricated using electron-beam nanolithographyJournal of Applied Physics, 1994
- TMOKE hysteresis loops in Bragg diffraction from 2D patternsJournal of Magnetism and Magnetic Materials, 1993
- Hysteresis in lithographic arrays of permalloy particles: Experiment and theory (invited)Journal of Applied Physics, 1991