| Texto completo | |
| Autor(es): Mostrar menos - |
Cugini, F.
[1]
;
Porcari, G.
[1, 2]
;
Viappiani, C.
[1]
;
Caron, L.
[2, 3]
;
dos Santos, A. O.
[4]
;
Cardoso, L. P.
[5]
;
Passamani, E. C.
[6]
;
Proveti, J. R. C.
[7]
;
Gama, S.
[5, 8]
;
Bruck, E.
[2]
;
Solzi, M.
[1]
Número total de Autores: 11
|
| Afiliação do(s) autor(es): | [1] Univ Parma, Dept Phys & Earth Sci, Parco Area Sci 7-A, I-43124 Parma - Italy
[2] Delft Univ Technol, Fac Sci Appl, Fundamental Aspects Mat & Energy, Mekelweg 15, NL-2629 JB Delft - Netherlands
[3] Max Planck Inst Chem Phys Solids, Nothnitzer Str 40, D-01187 Dresden - Germany
[4] Univ Fed Maranhao, CCSST, BR-65900410 Imperatriz, MA - Brazil
[5] Univ Estadual Campinas, Inst Fis Gleb Wataghin, BR-13083970 Campinas, SP - Brazil
[6] Univ Fed Espirito Santo, Dept Fis, BR-29075910 Vitoria, ES - Brazil
[7] Univ Fed Espirito Santo, Dept Ciencias Nat, BR-29932540 Sao Mateus, ES - Brazil
[8] Univ Fed Sao Paulo, BR-00972270 Sao Paulo - Brazil
Número total de Afiliações: 8
|
| Tipo de documento: | Artigo Científico |
| Fonte: | Applied Physics Letters; v. 108, n. 1 JAN 4 2016. |
| Citações Web of Science: | 10 |
| Resumo | |
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. (C) 2016 AIP Publishing LLC. (AU) | |
| Processo FAPESP: | 03/12604-6 - Estudo do efeito magnetocalórico em compostos derivados da fase Mn2a, a=N, P, As, Sb e Bi |
| Beneficiário: | Luana Caron |
| Modalidade de apoio: | Bolsas no Brasil - Doutorado Direto |