Elliptic NdCrO sub(3) microplate by a simple one-step hydrothermal synthesis route and its characterization and magnetic properties

Elliptic NdCrO sub(3) microplates were synthesized by a simple and facile one-step hydrothermal method of processing temperature 280 degree C for 3 days. The products prepared in this paper have been characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), X-ray fluorescence (XRF), Fourier transform infrared spectroscopy (FTIR) and field-emission scanning electron microscopy (FESEM). The magnetic properties of the final sample are also studied. The XRD pattern indicates the pure orthorhombic phase for NdCrO sub(3) particles, the XPS, XRF and FTIR results further demonstrate the composition and purity of the final product. A possible growth mechanism for elliptic NdCrO sub(3) microplates is proposed. Through the investigation of magnetic properties, it can be generally concluded that the orthorhombic elliptic NdCrO sub(3) microplates exhibit typical behaviors of magnetic transition, spin reorientation transition and magnetic exchange bias. The Neel temperature is 218 K and the spin reorientation transition temperature is 46 K. The hysteresis loop under 5 K shows that the value of exchange bias field (H sub(ex)) is 12 Oe and the shift of remanent magnetization ( Delta M) is 0.008 emu/g, respectively. Elliptic NdCrO sub(3) microplates were first synthesized by a simple one-step hydrothermal route. The products were characterized by XRD, XPS, XRF, FTIR and SEM. The as-synthesized NdCrO sub(3) sample exhibited behaviors of magnetic transition, spin reorientation transition and magnetic exchange bias. It could be used as a magnetic material.