Modifications of the structure and magnetic properties of ceramic YCrO₃with Fe/Ni doping

Temperature dependent electron paramagnetic resonance study on magnetoelectric YCrO3

“…The phase analysis using JCPDS file no. 34-0365 and subsequent Rietveld analysis [25] confirms the presence of orthorhombic structured phase with Pnma space group without any evidence of secondary phases. The phase analysis details have been demonstrated in our previous work as can be seen in [25].…”

“…Subsequently, the samples were characterized by dc-magnetic susceptibility measurement using a Quantum Design superconducting quantum interference device (SQUID) magnetometer which shows the magnetic transition temperatures at 140 K (T N ). The details of the XRD and SQUID measurements are provided elsewhere [25]. Further, the samples were characterized by EPR and dielectric measurements.…”

A comprehensive review on the ferroelectric orthochromates: Synthesis, property, and application

“…The samples are AFM. The corresponding transition temperature T N increases with the Fe doping and decreases for the Ni doping, which was attributed to the modification of exchange interactions of the (next) nearest neighbors [264].…”

“…(2) YCr 1−x M x O 3 (M = Fe and Ni). Phase-pure YCr 1−x M x O 3 poly-crystalline ceramics (M = Fe and Ni, and x = 0 and 0.1) were prepared by Mall et al via the solid state reactions, and modifications of the structure, magnetism, and Raman spectra were studied [264]. Upon doping, there is no change in the crystalline structure of orthorhombic with Pnma space group.…”

“…(ii) With decreasing temperature from T IP down to T N ∼ 140 K, spin correlations of short-range CAFM form gradually with the paramagnetic background [185]. (iii) At T N ∼ 140 K, YCrO 3 undergoes a magnetic phase transition from the short-range CAFM to a long-range ordered CAFM [88,185,217,264]. This magnetic phase persists down to 60 K. It is pointed out that Sharma et al observed a clear loop opening in magnetization isotherms at 125 K and no saturation of magnetization up to 20 kOe indicative of a coexistence of WFM and AFM phases at this temperature.…”