Low-field magnetocaloric effect in Nd2Ni2ln intermetallic compound / Efeito magnetocalórico de baixo campo no composto intermetálico Nd2Ni2ln

Authors

  • José Anselmo da Silva Santos Brazilian Journals Publicações de Periódicos, São José dos Pinhais, Paraná
  • Jeferson Marques Santos
  • Edison Jesus Ramirez Plaza
  • Nelson Orlando Moreno Salazar

DOI:

https://doi.org/10.34117/bjdv7n12-123

Keywords:

Magnetocaloric, Antiferromagnetic ordering, intermetallics

Abstract

In this work, we consider a model which describes the CEF and magnetic interaction applied to two sublattices, where the magnetic interaction is described by a Hamiltonian who considers the Zeeman and exchange interactions in the molecular field approximation. The isothermal magnetic entropy change ΔS as a function of temperature was computationally obtained in the [001] crystallographic direction, from the equation of state of magnetization M(H, T) and entropy S (H, T) by diagonalization of the total Hamiltonian (HTot). We obtained a good agreement between the theory and the experiment was using the estimated crystal-field parameters and the exchange integral for Nd2Ni2In.

References

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Published

2021-12-29

How to Cite

Santos, J. A. da S., Santos, J. M., Plaza, E. J. R., & Salazar, N. O. M. (2021). Low-field magnetocaloric effect in Nd2Ni2ln intermetallic compound / Efeito magnetocalórico de baixo campo no composto intermetálico Nd2Ni2ln. Brazilian Journal of Development, 7(12), 111845–111851. https://doi.org/10.34117/bjdv7n12-123

Issue

Section

Original Papers