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Magnetic patterns in dipolar films with close packed structures

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Title: Magnetic patterns in dipolar films with close packed structures
Authors: Estevez-Rams, E. eerams@uci.cu, León, H.1
Source: Journal of Magnetism & Magnetic Materials. Oct2010, Vol. 322 Issue 19, p2874-2881. 8p.
Subjects: Magnetic properties of thin films, Magnetization, Separation (Technology), Molecular structure, Low temperatures, Entropy
Abstract: Abstract: It is described and explained the dynamics of the transition from in-plane to perpendicular magnetization for dipolar films with close packed structures when the c/a ratio, with c the interlayer separation and a the two-dimensional lattice constant, is varied. Several arrangements of distinct number of stacked layers are considered. Magnetization switching follows a mechanism based on the role of the interlayer coupling, which is understood as the contribution of the interaction between dipoles of different layers to the studied effects. Calculations for sufficiently low temperatures show that each magnetic configuration transition leaves a fingerprint as an entropy maximum when the latter is plotted as a function of c/a. Thus the entropy allows to determine the c/a range of stability of the different magnetic patterns. [Copyright &y& Elsevier]
Copyright of Journal of Magnetism & Magnetic Materials is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
An: 51922568
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Data: Abstract: It is described and explained the dynamics of the transition from in-plane to perpendicular magnetization for dipolar films with close packed structures when the c/a ratio, with c the interlayer separation and a the two-dimensional lattice constant, is varied. Several arrangements of distinct number of stacked layers are considered. Magnetization switching follows a mechanism based on the role of the interlayer coupling, which is understood as the contribution of the interaction between dipoles of different layers to the studied effects. Calculations for sufficiently low temperatures show that each magnetic configuration transition leaves a fingerprint as an entropy maximum when the latter is plotted as a function of c/a. Thus the entropy allows to determine the c/a range of stability of the different magnetic patterns. [Copyright &y& Elsevier]
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  Data: <i>Copyright of Journal of Magnetism & Magnetic Materials is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1016/j.jmmm.2010.04.044
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        Text: English
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        PageCount: 8
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      – SubjectFull: Magnetic properties of thin films
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      – SubjectFull: Magnetization
        Type: general
      – SubjectFull: Separation (Technology)
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      – SubjectFull: Molecular structure
        Type: general
      – SubjectFull: Low temperatures
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      – SubjectFull: Entropy
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      – TitleFull: Magnetic patterns in dipolar films with close packed structures
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              Text: Oct2010
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