MICROMAGNETIC STRUCTURE OF DOMAINS IN CO/PT MULTILAYERS .2. INVESTIGATIONS OF DOMAIN-STRUCTURES IN WRITTEN MARKS

PLOESSL, R and CHAPMAN, JN and VANKESTEREN, HW and HOFFMANN, H (1993) MICROMAGNETIC STRUCTURE OF DOMAINS IN CO/PT MULTILAYERS .2. INVESTIGATIONS OF DOMAIN-STRUCTURES IN WRITTEN MARKS. JOURNAL OF APPLIED PHYSICS, 74 (12). pp. 7438-7442. ISSN 0021-8979,

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Abstract

An analysis is presented of the detailed effects of varying the write parameters in Co/Pt multilayer films: Domains written thermomagnetically by laser modulation have been imaged using the modified differential phase contrast mode of Lorentz electron microscopy. The effects of different laser powers and bias fields were investigated. While the domain size increases with laser power, the bias field is found to have a profound effect on domain regularity. The periodicity of the irregular circumference of the domains written at high-bias fields closely resembles the mean repeat in the ac-demagnetized state suggesting that it arises as a relaxation phenomenon.

Item Type: Article
Uncontrolled Keywords: MICROSCOPY;
Depositing User: Dr. Gernot Deinzer
Last Modified: 19 Oct 2022 08:42
URI: https://pred.uni-regensburg.de/id/eprint/53623

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