Magnetic properties of Cd 1– x Fe x Cr 2 S 4 ( x = 0.5–0.8) solid solutions
2017
Cd1–x Fe x Cr2S4 (x = 0.5–0.8) spinel solid solutions have been synthesized and their magnetic properties have been measured using a Quantum Design PMS-9 instrument at temperatures from 5 to 300 K in a static (7960 A/m) and an ac (100, 1000, and 10000 Hz) magnetic field (79.6 A/m peak) at an external field H = 0. At low temperatures, all of the solid solutions have extended ranges where their dynamic magnetic susceptibility around their ferrimagnetic transition is frequency-dependent. The obtained results are discussed in terms of models that take into account the instability of the long-range magnetic order in the endmembers of the solid solution system: FeCr2S4 and CdCr2S4.
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