Numerical micromagnetics; Prolate spheroids

Conference · Fri Sep 01 04:00:00 EDT 1989 · IEEE (Institute of Electrical and Electronics Engineers) Transactions on Magnetics; (USA)

OSTI ID:5175757

Fredkin, D R ^[1]; Koehler, T R ^[2]

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1. California Univ., San Diego, La Jolla, CA (USA)
2. IBM Almaden Research Center, San Jose, CA (USA)

The authors studied the magnetization patterns during reversal for a range of material parameters in a ferromagnetic prolate spheroid with a 2:1 aspect ratio. Their results are presented in this paper. Some of the results are quite analogous to those observed previously in our study of a ferromagnetic sphere. Because of the shape anisotropy of the spheroid, certain switching mechanisms found for the sphere were not seen. However, new states, whose dominant features are most easily interpreted in terms of a complex domain wall structure, are found. The reversal process is governed by these states when they occur and the process is quite complex.

• OSTI ID: 5175757
• Report Number(s): CONF-890309--
• Conference Information: Journal Name: IEEE (Institute of Electrical and Electronics Engineers) Transactions on Magnetics; (USA) Journal Volume: 25:5
• Country of Publication: United States
• Language: English

Related Subjects

656100* -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ANISOTROPY
FERROMAGNETISM
MAGNETISM
MAGNETIZATION
MATERIALS
NUMERICAL SOLUTION
PARAMETRIC ANALYSIS
SPHEROIDS