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Theoretical approach to the magnetocaloric effect with hysteresis

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Title: Theoretical approach to the magnetocaloric effect with hysteresis
Authors: Basso, V. basso@ien.it, Bertotti, G.1, LoBue, M.1, Sasso, C.P.1
Source: Journal of Magnetism & Magnetic Materials. Apr2005, Vol. 290-291, p654-657. 4p.
Subjects: Electromagnetic induction, Thermodynamics, Magnetic fields, Magnetics
Abstract: Abstract: In this paper a thermodynamic model with internal variables is presented and applied to ferromagnetic hysteresis. The out-of-equilibrium Gibbs free energy of a magnetic system is expressed as a function of the internal state of the Preisach model. Expressions for the system entropy and the entropy production are derived. By this approach it is possible to reproduce the characteristic features of the experimentally observed temperature changes (of the order of K around room temperature) induced by the magnetic field along the hysteresis loop performed in iron under adiabatic condition. [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: 17573443
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Data: Theoretical approach to the magnetocaloric effect with hysteresis
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  Data: <searchLink fieldCode="AR" term="%22Basso%2C+V%2E%22">Basso, V.</searchLink><i> basso@ien.it</i><br /><searchLink fieldCode="AR" term="%22Bertotti%2C+G%2E%22">Bertotti, G.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22LoBue%2C+M%2E%22">LoBue, M.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Sasso%2C+C%2EP%2E%22">Sasso, C.P.</searchLink><relatesTo>1</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Magnetism+%26+Magnetic+Materials%22">Journal of Magnetism & Magnetic Materials</searchLink>. Apr2005, Vol. 290-291, p654-657. 4p.
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  Data: <searchLink fieldCode="DE" term="%22Electromagnetic+induction%22">Electromagnetic induction</searchLink><br /><searchLink fieldCode="DE" term="%22Thermodynamics%22">Thermodynamics</searchLink><br /><searchLink fieldCode="DE" term="%22Magnetic+fields%22">Magnetic fields</searchLink><br /><searchLink fieldCode="DE" term="%22Magnetics%22">Magnetics</searchLink>
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  Label: Abstract
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  Data: Abstract: In this paper a thermodynamic model with internal variables is presented and applied to ferromagnetic hysteresis. The out-of-equilibrium Gibbs free energy of a magnetic system is expressed as a function of the internal state of the Preisach model. Expressions for the system entropy and the entropy production are derived. By this approach it is possible to reproduce the characteristic features of the experimentally observed temperature changes (of the order of K around room temperature) induced by the magnetic field along the hysteresis loop performed in iron under adiabatic condition. [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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        Value: 10.1016/j.jmmm.2004.11.324
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      – Code: eng
        Text: English
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      – SubjectFull: Electromagnetic induction
        Type: general
      – SubjectFull: Thermodynamics
        Type: general
      – SubjectFull: Magnetic fields
        Type: general
      – SubjectFull: Magnetics
        Type: general
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      – TitleFull: Theoretical approach to the magnetocaloric effect with hysteresis
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            NameFull: Basso, V.
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            NameFull: Bertotti, G.
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            NameFull: LoBue, M.
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              Text: Apr2005
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              Y: 2005
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              Value: 290-291
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            – TitleFull: Journal of Magnetism & Magnetic Materials
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