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Temperature dependence of the magnetization of canted spin structures

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Title: Temperature dependence of the magnetization of canted spin structures
Authors: Jacobsen, Henrik1, Lefmann, Kim1, Brok, Erik2,3, Frandsen, Cathrine2 fraca@fysik.dtu.dk, Mørup, Steen2
Source: Journal of Magnetism & Magnetic Materials. Sep2012, Vol. 324 Issue 19, p3218-3222. 5p.
Subjects: Magnetization, Low temperatures, Magnetic nanoparticles, Ferrimagnetism, Ferrites, Magnetic structure, Scientific observation
Abstract: Abstract: Numerous studies of the low-temperature saturation magnetization of ferrimagnetic nanoparticles and diamagnetically substituted ferrites have shown an anomalous temperature dependence. It has been suggested that this is related to freezing of canted magnetic structures. We present models for the temperature dependence of the magnetization of a simple canted spin structure in which relaxation can take place at finite temperatures between spin configurations with different canting angles. We show that the saturation magnetization may either decrease or increase with decreasing temperature, depending on the ratio of the exchange coupling constants. This is in agreement with experimental observations. [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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Header DbId: egs
DbLabel: Engineering Source
An: 77338881
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Data: Temperature dependence of the magnetization of canted spin structures
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Magnetism+%26+Magnetic+Materials%22">Journal of Magnetism & Magnetic Materials</searchLink>. Sep2012, Vol. 324 Issue 19, p3218-3222. 5p.
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  Data: <searchLink fieldCode="DE" term="%22Magnetization%22">Magnetization</searchLink><br /><searchLink fieldCode="DE" term="%22Low+temperatures%22">Low temperatures</searchLink><br /><searchLink fieldCode="DE" term="%22Magnetic+nanoparticles%22">Magnetic nanoparticles</searchLink><br /><searchLink fieldCode="DE" term="%22Ferrimagnetism%22">Ferrimagnetism</searchLink><br /><searchLink fieldCode="DE" term="%22Ferrites%22">Ferrites</searchLink><br /><searchLink fieldCode="DE" term="%22Magnetic+structure%22">Magnetic structure</searchLink><br /><searchLink fieldCode="DE" term="%22Scientific+observation%22">Scientific observation</searchLink>
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  Label: Abstract
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  Data: Abstract: Numerous studies of the low-temperature saturation magnetization of ferrimagnetic nanoparticles and diamagnetically substituted ferrites have shown an anomalous temperature dependence. It has been suggested that this is related to freezing of canted magnetic structures. We present models for the temperature dependence of the magnetization of a simple canted spin structure in which relaxation can take place at finite temperatures between spin configurations with different canting angles. We show that the saturation magnetization may either decrease or increase with decreasing temperature, depending on the ratio of the exchange coupling constants. This is in agreement with experimental observations. [Copyright &y& Elsevier]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  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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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1016/j.jmmm.2012.05.003
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      – Code: eng
        Text: English
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        PageCount: 5
        StartPage: 3218
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      – SubjectFull: Magnetization
        Type: general
      – SubjectFull: Low temperatures
        Type: general
      – SubjectFull: Magnetic nanoparticles
        Type: general
      – SubjectFull: Ferrimagnetism
        Type: general
      – SubjectFull: Ferrites
        Type: general
      – SubjectFull: Magnetic structure
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      – SubjectFull: Scientific observation
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      – TitleFull: Temperature dependence of the magnetization of canted spin structures
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            NameFull: Brok, Erik
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            NameFull: Frandsen, Cathrine
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            NameFull: Mørup, Steen
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              Text: Sep2012
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