Dependence of the inverse magnetocaloric effect on the field-change rate in Mn3GaC and its relationship to the kinetics of the phase transition

Scheibel, Fransizka; Gottschall, Toni; Skokov, K.; Gutfleisch, O.; Ghorbani-Zavareh, M.; Skourski, Yuri; Wosnitza, J.; ÇAKIR, Öznur; Farle, M.; Acet, M.

doi:10.1063/1.4922722

Dependence of the inverse magnetocaloric effect on the field-change rate in Mn3GaC and its relationship to the kinetics of the phase transition

Copy For Citation

Scheibel F., Gottschall T., Skokov K., Gutfleisch O., Ghorbani-Zavareh M., Skourski Y., ...More

JOURNAL OF APPLIED PHYSICS, vol.117, no.23, 2015 (SCI-Expanded)

Publication Type: Article / Article
Volume: 117 Issue: 23
Publication Date: 2015
Doi Number: 10.1063/1.4922722
Journal Name: JOURNAL OF APPLIED PHYSICS
Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
Yıldız Technical University Affiliated: Yes

Abstract

We study the dependence of the magnetocaloric effect on the magnetic field-change-rate the first order magnetostructural transition in Mn3GaC by measuring the adiabatic temperature change Delta T at three different time scales: 11mTs(-1), 700mTs(-1), and similar to 1000Ts(-1). We find that the maximum adiabatic temperature-change of about 5 K is reached in the 11mTs(-1) and 700mTs(-1) rates, whereas for the similar to 1000Ts(-1)-rate the transition lags the change in the magnetic field so that the maximum adiabatic temperature-change is not attained. (C) 2015 AIP Publishing LLC.