Pressure Induced AF - F - AF Magnetic Phase Transformations in Pd Substituted FeRh Compound

Abstract:

At ambient pressure, the Fe_0.49(Rh_1-xPd_x)_0.51 alloys with the Pd concentration within 0 < x < 0.12 exhibit an antiferromagnetic (AF) state below the critical temperature T_t, while above x = 0.12 the alloys have a ferromagnetic (F) order up to the Curie temperature T_C 650 K. The temperature and field dependences of the magnetization in the alloys with x = 0.08; 0.13 were investigated under hydrostatic pressure up to 10 kbar. The application of pressure of about 8.5 kbar is observed to induce the F-AF phase transition in the ferromagnetically ordered compound with x = 0.13. The AF-F-AF phase evolution was revealed with increasing pressure in the AF-ordered alloy with x = 0.08.

• Periodical: Solid State Phenomena (Volume 190)
• Pages: 299-302
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.190.299
• Online since: June 2012
• Authors: A.M. Chirkova, A.S. Volegov, D.S. Neznakhin, E.A. Stepanova, N.V. Baranov
• Keywords: Antiferromagnetism, Ferromagnetism, First-Order Magnetic Phase Transition, High-Pressure, Ron-Rhodium Alloy

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