Franco, Victorino ; Gottschall, Tino ; Skokov, Konstantin ; Gutfleisch, Oliver (2016)
FORC analysis of magnetocaloric Heusler-type alloys.
In: IEEE Magnetics Letters, 7 (99)
doi: 10.1109/LMAG.2016.2541622
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
The thermomagnetic hysteresis loops of a Ni45.7Mn36.6In13.5Co4.2 Heusler-type alloy exhibiting inverse magnetocaloric effect were studied with the help of First Order Reversal Curves (FORC). These have been measured using two different protocols (either upon heating or cooling the sample) and using different applied magnetic fields. For proper comparison, FORC distributions were shifted according to the field dependent center of the M(T) hysteresis loop, which follows a linear trend. The qualitative behavior of FORC distributions remains the same, allowing their use for fingerprinting the transition, while there is a shift of their maxima along the hysteretic temperature axis and their distributions also get broader along the interaction temperature axis with increasing magnetic field. This was evidence that FORC distributions are dependent on the intensive variables temperature and field. As a consequence, it is necessary to obtain them for different temperatures and fields in order to accurately model the transition.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2016 |
| Autor(en): | Franco, Victorino ; Gottschall, Tino ; Skokov, Konstantin ; Gutfleisch, Oliver |
| Art des Eintrags: | Bibliographie |
| Titel: | FORC analysis of magnetocaloric Heusler-type alloys |
| Sprache: | Englisch |
| Publikationsjahr: | 14 März 2016 |
| Verlag: | IEEE |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | IEEE Magnetics Letters |
| Jahrgang/Volume einer Zeitschrift: | 7 |
| (Heft-)Nummer: | 99 |
| DOI: | 10.1109/LMAG.2016.2541622 |
| Kurzbeschreibung (Abstract): | The thermomagnetic hysteresis loops of a Ni45.7Mn36.6In13.5Co4.2 Heusler-type alloy exhibiting inverse magnetocaloric effect were studied with the help of First Order Reversal Curves (FORC). These have been measured using two different protocols (either upon heating or cooling the sample) and using different applied magnetic fields. For proper comparison, FORC distributions were shifted according to the field dependent center of the M(T) hysteresis loop, which follows a linear trend. The qualitative behavior of FORC distributions remains the same, allowing their use for fingerprinting the transition, while there is a shift of their maxima along the hysteretic temperature axis and their distributions also get broader along the interaction temperature axis with increasing magnetic field. This was evidence that FORC distributions are dependent on the intensive variables temperature and field. As a consequence, it is necessary to obtain them for different temperatures and fields in order to accurately model the transition. |
| Freie Schlagworte: | FORC - First Order Reversal Curve Workshop (Magnetic Hysteresis), First order reversal curves, Heusler alloys, Magnetocaloric effect |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Funktionale Materialien |
| Hinterlegungsdatum: | 11 Mai 2016 12:58 |
| Letzte Änderung: | 16 Jun 2020 11:06 |
| PPN: | |
| Sponsoren: | V.F. acknowledges funding from the Deutscher Akademischer Austauschdienst DAAD Award A/13/09434, Spanish MINECO and EU FEDER (Project MAT2013-45165-P), and the PAI of the Regional Government of Andalucia., T.G. acknowledges funding from the DFG propriety program SPP1599., K.P.S. acknowledges funding from the European Community's seventh framework program FP 7/2007 -2013 under grant agreement n°310748 (DRREAM).)., O.G. acknowledges funding from the Hessian Excellence Programme LOEWE RESPONSE. |
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