NDLI: Possible determination of critical exponents from experimental magnetization data of ferromagnetic thin films

Content Provider	EDP Sciences
Author	P. Schilbe K. H. Rieder
Abstract	The influence of finite-size effects on the determination of the critical exponent of the magnetization β is critically discussed. We show that the usual fitting procedure, of fitting a power law to experimental data, is not correct for finite-size disturbed data and only accidentally results in nearly correct values for the critical exponent. The critical temperature resulting from a fit procedure is always too high, because the fitting range includes finite-size disturbed data. A new method is proposed, which circumvents the problems arising in fitting a power law to the experimental magnetization data. This method uses an effective critical exponent and allows the determination of β and T_{c_{even from finite-size disturbed data. The method will be reliable for evaluating experimental data in the currently interesting field of confined magnetic films.}}
Ending Page	224
Starting Page	219
Page Count	6
File Format	HTM / HTML PDF
ISSN	02955075
Alternate Webpage(s)	https://epljournal.edpsciences.org/articles/epl/abs/1998/02/41219/41219.html
e-ISSN	12864854
Issue Number	2
Journal	Europhysics Letters
Volume Number	41
DOI	10.1209/epl/i1998-00133-6
Language	English
Publisher	EDP Sciences
Publisher Date	1998-01-01
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	© EDP Sciences, 1998
Subject Keyword	Magnetic properties of monolayers and thin films Static properties (order parameter, static susceptibility, heat capacities, critical exponents, etc.) Numerical simulation studies
Content Type	Text
Resource Type	Article
Subject	Physics and Astronomy

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