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McPhase model calculations of the magnetic phase diagram of CeCu2Ge2 – Prediction of a double q magnetic structure.

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Title: McPhase model calculations of the magnetic phase diagram of CeCu2Ge2 – Prediction of a double q magnetic structure.
Authors: Rotter, M.1 martin_rotter@mcphase.de, Doerr, M.1 doerr@physik.tu-dresden.de
Source: Computational Materials Science. Feb2018, Vol. 142, p206-214. 9p.
Subjects: Magnetic transitions, Cerium compounds, Magnetic structure, Magnetic properties of metals, Physics experiments
Abstract: The magnetic ( H , T ) -phase diagram of CeCu 2 Ge 2 has been studied by model calculations using the McPhase program. Aiming at the best possible description of the magnetic properties model parameters were varied and the complexity of the model approach was increased. A double- q magnetic structure was predicted with q + = (hhl) and q - = (h-hl) that changes to a single- q one at applied in plane magnetic field. The extent and stability of the double- q magnetic structure was investigated and physical properties are compared to available experimental data. The calculations reveal the principal shape of magnetisation curves and the calculated ( H , T ) -phase diagram agrees satisfactorily to that deduced from experiments. The consistence of experimental results and theoretical model is important for the understanding of magnetism in CeCu 2 Ge 2 and the heavy fermion superconductor CeCu 2 Si 2 . [ABSTRACT FROM AUTHOR]
Copyright of Computational Materials Science 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: 126185493
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Label: Title
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  Data: McPhase model calculations of the magnetic phase diagram of CeCu2Ge2 – Prediction of a double q magnetic structure.
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  Data: <searchLink fieldCode="AR" term="%22Rotter%2C+M%2E%22">Rotter, M.</searchLink><relatesTo>1</relatesTo><i> martin_rotter@mcphase.de</i><br /><searchLink fieldCode="AR" term="%22Doerr%2C+M%2E%22">Doerr, M.</searchLink><relatesTo>1</relatesTo><i> doerr@physik.tu-dresden.de</i>
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  Data: <searchLink fieldCode="JN" term="%22Computational+Materials+Science%22">Computational Materials Science</searchLink>. Feb2018, Vol. 142, p206-214. 9p.
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  Data: <searchLink fieldCode="DE" term="%22Magnetic+transitions%22">Magnetic transitions</searchLink><br /><searchLink fieldCode="DE" term="%22Cerium+compounds%22">Cerium compounds</searchLink><br /><searchLink fieldCode="DE" term="%22Magnetic+structure%22">Magnetic structure</searchLink><br /><searchLink fieldCode="DE" term="%22Magnetic+properties+of+metals%22">Magnetic properties of metals</searchLink><br /><searchLink fieldCode="DE" term="%22Physics+experiments%22">Physics experiments</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: The magnetic ( H , T ) -phase diagram of CeCu 2 Ge 2 has been studied by model calculations using the McPhase program. Aiming at the best possible description of the magnetic properties model parameters were varied and the complexity of the model approach was increased. A double- q magnetic structure was predicted with q + = (hhl) and q - = (h-hl) that changes to a single- q one at applied in plane magnetic field. The extent and stability of the double- q magnetic structure was investigated and physical properties are compared to available experimental data. The calculations reveal the principal shape of magnetisation curves and the calculated ( H , T ) -phase diagram agrees satisfactorily to that deduced from experiments. The consistence of experimental results and theoretical model is important for the understanding of magnetism in CeCu 2 Ge 2 and the heavy fermion superconductor CeCu 2 Si 2 . [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Computational Materials Science 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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    Identifiers:
      – Type: doi
        Value: 10.1016/j.commatsci.2017.10.008
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      – Code: eng
        Text: English
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      Pagination:
        PageCount: 9
        StartPage: 206
    Subjects:
      – SubjectFull: Magnetic transitions
        Type: general
      – SubjectFull: Cerium compounds
        Type: general
      – SubjectFull: Magnetic structure
        Type: general
      – SubjectFull: Magnetic properties of metals
        Type: general
      – SubjectFull: Physics experiments
        Type: general
    Titles:
      – TitleFull: McPhase model calculations of the magnetic phase diagram of CeCu2Ge2 – Prediction of a double q magnetic structure.
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            NameFull: Rotter, M.
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            NameFull: Doerr, M.
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            – D: 01
              M: 02
              Text: Feb2018
              Type: published
              Y: 2018
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              Value: 142
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            – TitleFull: Computational Materials Science
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