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Magnetoelastic investigations at PrCaMnO manganites

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Title: Magnetoelastic investigations at PrCaMnO manganites
Authors: Doerr, M.1 doerr@physik.tu-dresden.de, Reményi, G.2,3, Rotter, M.4, Sahling, S.1, Saint-Paul, M.2, Loewenhaupt, M.1
Source: Journal of Magnetism & Magnetic Materials. Apr2005, Vol. 290-291, p906-909. 4p.
Subjects: Magnetostriction, Manganite, Temperature, Magnetic fields
Abstract: Abstract: The magnetoelastic properties of the PrCaMnO manganites were investigated for samples with and 0.5 by magnetostriction experiments using a capacitive miniature dilatometer at high magnetic fields. The forced magnetostriction, measured at several temperatures between 2 and 240K and at fields up to 23T at the Grenoble high-field laboratory, is characterized by a lattice contraction of about 10 at the transition from the charged ordered insulating into the ferromagnetic metallic state. The effect is highly hysteretic. In contrast, the antiferromagnetic ordering process does not change the lattice remarkably. Our findings agree well with the results of sound velocity experiments and confirm the phase diagram. The strong correlation effects between the lattice and the electronic system indicate the importance of the magnetoelastic coupling in these colossal magnetoresistance (CMR) compounds. [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.)
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DbLabel: Engineering Source
An: 17553741
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  Data: Magnetoelastic investigations at PrCaMnO manganites
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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, p906-909. 4p.
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  Data: <searchLink fieldCode="DE" term="%22Magnetostriction%22">Magnetostriction</searchLink><br /><searchLink fieldCode="DE" term="%22Manganite%22">Manganite</searchLink><br /><searchLink fieldCode="DE" term="%22Temperature%22">Temperature</searchLink><br /><searchLink fieldCode="DE" term="%22Magnetic+fields%22">Magnetic fields</searchLink>
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  Label: Abstract
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  Data: Abstract: The magnetoelastic properties of the PrCaMnO manganites were investigated for samples with and 0.5 by magnetostriction experiments using a capacitive miniature dilatometer at high magnetic fields. The forced magnetostriction, measured at several temperatures between 2 and 240K and at fields up to 23T at the Grenoble high-field laboratory, is characterized by a lattice contraction of about 10 at the transition from the charged ordered insulating into the ferromagnetic metallic state. The effect is highly hysteretic. In contrast, the antiferromagnetic ordering process does not change the lattice remarkably. Our findings agree well with the results of sound velocity experiments and confirm the phase diagram. The strong correlation effects between the lattice and the electronic system indicate the importance of the magnetoelastic coupling in these colossal magnetoresistance (CMR) compounds. [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.2004.11.286
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      – Code: eng
        Text: English
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        Type: general
      – SubjectFull: Manganite
        Type: general
      – SubjectFull: Temperature
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      – SubjectFull: Magnetic fields
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              Text: Apr2005
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              Y: 2005
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              Value: 290-291
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