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The Effect of Fe Doping on the Magnetic and Magnetocaloric Properties of Mn5−xFexGe3
Joint Authors
Brock, Jeffrey
Bell-Pactat, Nathanael
Cai, Hong
Dennison, Timothy
Fox, Tucker
Free, Brandon
Mahyub, Rami
Nar, Austin
Saaranen, Michael
Schaeffer, Tiago
Khan, Mahmud
Source
Advances in Materials Science and Engineering
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-03-06
Country of Publication
Egypt
No. of Pages
7
Abstract EN
The magnetic and magnetocaloric properties of a series of minutely doped Mn5-xFexGe3 compounds that exhibit the D88-type hexagonal crystal structure at room temperature have been investigated.
For all Fe concentrations, the alloys are ferromagnetic and undergo a second-order ferromagnetic-to-paramagnetic transition near room temperature.
Although the small Fe doping had little effect on the ferromagnetic transition temperatures of the system, changes in the saturation magnetization and magnetic anisotropy were observed.
For x≤0.15, all compounds exhibit nearly the same magnetic entropy change of ~7 J/kg K, for a field change of 50 kOe.
However, the magnitude of the refrigerant capacities increased with Fe doping, with values up to 108.5 J/kg and 312 J/kg being observed for field changes of 20 kOe and 50 kOe, respectively.
As second-order phase transition materials, the Mn5-xFexGe3 compounds are not subject to the various drawbacks associated with first-order phase transition materials yet exhibit favorable magnetocaloric effects.
American Psychological Association (APA)
Brock, Jeffrey& Bell-Pactat, Nathanael& Cai, Hong& Dennison, Timothy& Fox, Tucker& Free, Brandon…[et al.]. 2017. The Effect of Fe Doping on the Magnetic and Magnetocaloric Properties of Mn5−xFexGe3. Advances in Materials Science and Engineering،Vol. 2017, no. 2017, pp.1-7.
https://search.emarefa.net/detail/BIM-1125161
Modern Language Association (MLA)
Brock, Jeffrey…[et al.]. The Effect of Fe Doping on the Magnetic and Magnetocaloric Properties of Mn5−xFexGe3. Advances in Materials Science and Engineering No. 2017 (2017), pp.1-7.
https://search.emarefa.net/detail/BIM-1125161
American Medical Association (AMA)
Brock, Jeffrey& Bell-Pactat, Nathanael& Cai, Hong& Dennison, Timothy& Fox, Tucker& Free, Brandon…[et al.]. The Effect of Fe Doping on the Magnetic and Magnetocaloric Properties of Mn5−xFexGe3. Advances in Materials Science and Engineering. 2017. Vol. 2017, no. 2017, pp.1-7.
https://search.emarefa.net/detail/BIM-1125161
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1125161