Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 505, Issue 2, Pages L38-L42Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2010.06.096
Keywords
Magnetic phase transition; First order; Re-entrant magnet
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Funding
- Australian Research Council [DP0879070]
- Australian Research Council [DP0879070] Funding Source: Australian Research Council
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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 9T in PrMn1.4Fe0.6Ge2. All three FOMTs, from (with decreasing temperature) an antiferromagnetic (AFI) 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. Crown Copyright (C) 2010 Published by Elsevier B.V. All rights reserved.
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