The influence of crystal electrical field on first- and second-order magnetic phase transition in Praseodymium intermetallics

P.J.von Ranke, N.A.de Oliveira and A. Caldas

Physica A: Statistical Mechanics and its Applications, 1998, vol. 256, issue 3, 397-405

Abstract: In order to investigate the influence of crystal electrical field on determining the first- or second-order ferromagnetic–paramagnetic phase transition, we have considered Praseodymium intermetallics systems PrX2 (X=Al,Ni,Rh,Ru,Mg). Using a theoretical model which takes into account the crystal field and exchange interaction, we have studied in analytical form the Landau free energy as a function of the model parameters, that leads to a phase diagram, which permits to show that the existence of first- or second-order magnetic phase transitions is strongly related to the magnitude of crystal field and critical temperature.

Keywords: Landau phase transition; Rare-earth intermetallics; Crystal field (search for similar items in EconPapers)
Date: 1998
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:256:y:1998:i:3:p:397-405

DOI: 10.1016/S0378-4371(98)00084-3

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