Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/238095
Type: Artigo
Title: Millisecond direct measurement of the magnetocaloric effect of a Fe2P-based compound by the mirage effect
Author: Cugini, F.
Porcari, G.
Viappiani, C.
Caron, L.
Santos, A. O. dos
Cardoso, L. P.
Passamani, E. C.
Proveti, J. R. C.
Gama, S.
Brück, E.
Solzi, M.
Abstract: We present direct measurements of the magnetocaloric effect on a Fe2P-based compound induced by a milliseconds pulsed magnetic field of 1 T to test their possible use in high frequency (up to 100 Hz) thermomagnetic cycles. The reported measurements were performed with an innovative and versatile non-contact set up based on the mirage effect. The adiabatic temperature change of a MnFeP0.45As0.55 sample is presented and compared with measurements performed varying the same magnetic field in a time interval of 1 s and 100 ms. These results demonstrate the absence of kinetic constraints in the first-order phase transition of this sample induced on the milliseconds time scale. The study of the materials' response to millisecond magnetic field pulses represents a fundamental test for the development of more powerful and efficient magnetic refrigerators. © 2016 AIP Publishing LLC.
We present direct measurements of the magnetocaloric effect on a Fe2P-based compound induced by a milliseconds pulsed magnetic field of 1 T to test their possible use in high frequency (up to 100 Hz) thermomagnetic cycles. The reported measurements were performed with an innovative and versatile non-contact set up based on the mirage effect. The adiabatic temperature change of a MnFeP0.45As0.55 sample is presented and compared with measurements performed varying the same magnetic field in a time interval of 1 s and 100 ms. These results demonstrate the absence of kinetic constraints in the first-order phase transition of this sample induced on the milliseconds time scale. The study of the materials' response to millisecond magnetic field pulses represents a fundamental test for the development of more powerful and efficient magnetic refrigerators.
Subject: Efeito magnetocalórico, Compostos de ferro, Campos magnéticos
Country: Estados Unidos
Editor: AIP Publishing
Citation: Applied Physics Letters. American Institute Of Physics Inc., v. 108, n. 1, p. , 2016.
Rights: aberto
Identifier DOI: 10.1063/1.4939451
Address: https://aip.scitation.org/doi/10.1063/1.4939451
Date Issue: 2016
Appears in Collections:IFGW - Artigos e Outros Documentos

Files in This Item:
File SizeFormat 
000374313000041.pdf789.17 kBAdobe PDFView/Open


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.