Three first order magnetic phase transitions in re-entrant ferromagnet PrMn1.4Fe0.6Ge2
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Date
2010-09-03
Journal Title
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Publisher
Elsevier
Abstract
Three first order magnetic phase transitions (FOMTs) have been detected and evaluated over the temperature range from 5 to 340 K at fields up to 9 T in PrMn1.4Fe0.6Ge2. All three FOMTs, from (with decreasing temperature) an antiferromagnetic (AFl) to a c-axis canted ferromagnetic (Fmc) state, to a c-axis canted antiferromagnetic (AFmc) state, and then to an Fmc state plus an additional Pr-sublattice magnetic contribution (Fmc + F(Pr)), exhibited temperature and field-induced transition features. A interesting phenomenon was observed, in that magnetic field can induce an AFmc to Fmc + F(Pr) transition, and then diminish and finally eliminate the re-entrant magnetic transition behavior under high field as well. Based on systematic measurements and analysis, a magnetic phase diagram has been determined. © 2010, Elsevier Ltd.
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Keywords
Magnetic properties, Phase transformations, Antiferromagnetism, Phase diagrams, Rare earth compounds, Reentry
Citation
Zeng, R., Wang, J. L., Lu, L., Li, W. X., Campbell, S. J., & Dou, S. X. (2010). Three first order magnetic phase transitions in re-entrant ferromagnet PrMn1.4Fe0.6Ge2. Journal of Alloys and Compounds, 505(2), L38-L42. doi:10.1016/j.jallcom.2010.06.096