Schneider, M. and Hoffmann, H. and Zweck, Josef (2003) Magnetisation reversal of thin submicron elliptical permalloy elements. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 257 (1). pp. 1-10. ISSN 0304-8853
Full text not available from this repository.Abstract
We have studied the magnetisation reversal of elliptical, polycrystalline permalloy elements as a function of their aspect ratios by Lorentz transmission electron microscopy. In situ magnetising experiments revealed four possible types of magnetisation reversal, which depend on the in-plane and out-of-plane aspect ratios of the submicron elements. The types differ in the number of observed vortices and a low or high remnant magnetisation. Diagrams of the types of magnetisation reversal are given for submicron elliptical elements of length 350, 550, 750 nm and a thickness of 8 and 15 nm, respectively. The switching, vortex evolution and annihilation fields were investigated and show a strong correlation with the element shape. We present magnetisation loops which are obtained by micromagnetic simulations and are characteristic for the observed types of reversal. (C) 2002 Elsevier Science B.V. All rights reserved.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | SCALE CO DOTS; MAGNETIZATION REVERSAL; VORTEX; MICROSCOPY; NANODISKS; VORTICES; ARRAYS; submicron elements; permalloy elements; Lorentz microscopy; magnetisation reversal |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics > Chair Professor Back > Group Josef Zweck |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 05 Aug 2021 09:53 |
| Last Modified: | 05 Aug 2021 09:53 |
| URI: | https://pred.uni-regensburg.de/id/eprint/39317 |
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