Dipolar-energy-activated magnetic domain pattern transformation driven by thermal fluctuations

Kronseder, M. and Buchner, M. and Bauer, H. G. and Back, C. H. (2013) Dipolar-energy-activated magnetic domain pattern transformation driven by thermal fluctuations. NATURE COMMUNICATIONS, 4: 2054. ISSN 2041-1723,

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Abstract

Two-dimensional ferromagnetic layers can serve as a playground for the study of basic physical properties of various pattern forming systems by virtue of their tuneable magnetic properties. Here we use threshold photoemission magnetic circular dichroism in combination with photoemission electron microscopy to investigate ultra-thin ferromagnetic Fe/Ni/Cu(001) films in the stripe domain phase near the spin reorientation transition as a function of film thickness, temperature and effective anisotropy. Here we report a metastable domain state with domain width larger than the thermodynamically stable one as a result of a rapid reduction of the anisotropy. The transformation into the equilibrium state takes place via the propagation of a transition front, which originates from defined steps in the film thickness.

Item Type: Article
Uncontrolled Keywords: ULTRATHIN FERROMAGNETIC-FILMS; SPIN REORIENTATION TRANSITION; CESIUM; FE/NI/CU(001); ANISOTROPY; NI(100); PHASE;
Subjects: 500 Science > 530 Physics
Divisions: Physics > Institute of Experimental and Applied Physics > Chair Professor Back > Group Christian Back
Depositing User: Dr. Gernot Deinzer
Date Deposited: 07 Apr 2020 13:44
Last Modified: 07 Apr 2020 13:44
URI: https://pred.uni-regensburg.de/id/eprint/16534

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