Gottschall, Tino ; Skokov, Konstantin P. ; Frincu, Bianca ; Gutfleisch, Oliver (2015)
Large reversible magnetocaloric effect in Ni-Mn-In-Co.
In: Applied Physics Letters, 106 (2)
doi: 10.1063/1.4905371
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
We report on the high irreversible adiabatic temperature change of −8 K in a magnetic field change of 1.95 T in the Heusler compound Ni45.7Mn36.6In13.5Co4.2 showing a first-order magnetostructural transition. Due to the large thermal hysteresis of 10 K, this high ΔTad cannot be obtained in a cyclic way but still the reversible magnetocaloric effect amounts to −3 K—an unexpectedly high value which compares to the ΔTad of La(Fe,Si,Co)13. In order to reveal the nature of this high reversible magnetocaloric effect, in-situ temperature dependent optical microscopy of minor loops of thermal hysteresis has been done.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2015 |
| Autor(en): | Gottschall, Tino ; Skokov, Konstantin P. ; Frincu, Bianca ; Gutfleisch, Oliver |
| Art des Eintrags: | Bibliographie |
| Titel: | Large reversible magnetocaloric effect in Ni-Mn-In-Co |
| Sprache: | Englisch |
| Publikationsjahr: | 12 Januar 2015 |
| Verlag: | AIP Publishing LLC |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Applied Physics Letters |
| Jahrgang/Volume einer Zeitschrift: | 106 |
| (Heft-)Nummer: | 2 |
| DOI: | 10.1063/1.4905371 |
| Kurzbeschreibung (Abstract): | We report on the high irreversible adiabatic temperature change of −8 K in a magnetic field change of 1.95 T in the Heusler compound Ni45.7Mn36.6In13.5Co4.2 showing a first-order magnetostructural transition. Due to the large thermal hysteresis of 10 K, this high ΔTad cannot be obtained in a cyclic way but still the reversible magnetocaloric effect amounts to −3 K—an unexpectedly high value which compares to the ΔTad of La(Fe,Si,Co)13. In order to reveal the nature of this high reversible magnetocaloric effect, in-situ temperature dependent optical microscopy of minor loops of thermal hysteresis has been done. |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Funktionale Materialien 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften |
| Hinterlegungsdatum: | 10 Feb 2015 09:29 |
| Letzte Änderung: | 10 Feb 2015 09:29 |
| PPN: | |
| Sponsoren: | This work was supported by DFG (Grant No. SPP 1599). |
| Export: | |
| Suche nach Titel in: | TUfind oder in Google |
 |
Frage zum Eintrag |
Optionen (nur für Redakteure)
 |
Redaktionelle Details anzeigen |
Drucken
Impressum