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

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

JOURNAL OF APPLIED PHYSICS, cilt.117, sa.23, 2015 (SCI-Expanded, Scopus)

Yayın Türü: Makale / Tam Makale
Cilt numarası: 117 Sayı: 23
Basım Tarihi: 2015
Doi Numarası: 10.1063/1.4922722
Dergi Adı: JOURNAL OF APPLIED PHYSICS
Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
Açık Arşiv Koleksiyonu: AVESİS Açık Erişim Koleksiyonu
Yıldız Teknik Üniversitesi Adresli: Evet

Özet

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.