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Dynamics of the magnetoelastic phase transition and adiabatic temperature change in Mn1.3Fe0.7P0.5Si0.55

Fries, Maximilian ; Gottschall, Tino ; Scheibel, Franziska ; Pfeuffer, Lukas ; Skokov, Konstantin P. ; Skourski, Yurii ; Acet, Mehmet ; Farle, Michael ; Wosnitza, Joachim ; Gutfleisch, Oliver (2020)
Dynamics of the magnetoelastic phase transition and adiabatic temperature change in Mn1.3Fe0.7P0.5Si0.55.
In: Journal of Magnetism and Magnetic Materials, 2019, 477
doi: 10.25534/tuprints-00013409
Article, Secondary publication, Postprint

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Item Type: Article
Type of entry: Secondary publication
Title: Dynamics of the magnetoelastic phase transition and adiabatic temperature change in Mn1.3Fe0.7P0.5Si0.55
Language: English
Date: 11 September 2020
Place of Publication: Darmstadt
Year of primary publication: 2019
Journal or Publication Title: Journal of Magnetism and Magnetic Materials
Volume of the journal: 477
DOI: 10.25534/tuprints-00013409
Corresponding Links:
Origin: Secondary publication
Abstract:

The adiabatic temperature change ΔTad of a Mn1:3Fe0:7P0:5Si0:55 Fe2P-type alloy was measured under different magnetic field-sweep rates from 0:93 Ts-1 to 2870 Ts-1. We find a field-sweep-rate independent magnetocaloric effect due a partial alignment of magnetic moments in the paramagnetic region overlapping with the magnetocaloric effect of the first-order phase transition. Additionally, the first-order phase transition is not completed even in fields up to 20T leading to a non-saturating behavior of ΔTad. Measurements in different pulsed fields reveal that the first-order phase transition cannot follow the fast field changes as previously assumed, resulting in a distinct field-dependent hysteresis in ΔTad.

Status: Postprint
URN: urn:nbn:de:tuda-tuprints-134094
Classification DDC: 500 Science and mathematics > 500 Science
500 Science and mathematics > 530 Physics
600 Technology, medicine, applied sciences > 620 Engineering and machine engineering
Divisions: 11 Department of Materials and Earth Sciences > Material Science > Functional Materials
Date Deposited: 11 Sep 2020 13:19
Last Modified: 06 Jun 2024 07:41
URI: https://tuprints.ulb.tu-darmstadt.de/id/eprint/13409
PPN: 473884518
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