Synthesis of REBa2Cu3O7-∂ (RE=Nd, Eu, Gd) Nanoparticles by Wet-Mixing Method

W. G. Suharta, P. Suardana, W. Windaryoto, S. Pratapa, S. Suasmoro, D. Darminto, Yasuyuki Ishii, W. Isao

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Abstract

The Nd0.33Eu0.33Gd0.33Ba2Cu3O7-∂ (NEG-123) nanoparticles have been successfully synthesized by wet-mixing method using HNO3 as dissolving agent. The NEG-123 samples are divided into two which were treated differently. The first and second samples were mixed respectively, for one and 24 hours. All the samples were then calcined at 600°C for 3 hours, and sintered at relatively low temperature (750 to 900°C), each for 30 minutes. Samples were characterized using X-ray diffraction (XRD), transmission electron microscopy (TEM), and vibrating sample magnetometer (VSM). Rietveld analysis shows the lattice parameter of a-axis decreases with the increasing sintering temperature from 750 to 900°C, while the lattice parameter of b and c-axes increases. Further, it was known based on the XRD analysis that the higher the sintering temperature, the greater the peak intensities and average crystal size. The NEG-123 samples with the average crystal size of hundreds nanometer exhibit paramagnetism, while those with average crystal size of ten nanometers demonstrate superparamagnetism at room temperature.

Original languageEnglish
Article number012027
JournalJournal of Physics: Conference Series
Volume1091
Issue number1
DOIs
Publication statusPublished - 2018 Sep 20
Externally publishedYes
Event9th Seminar on Magnetic Materials, SMM 2015 - Palembang, South Sumatera, Indonesia
Duration: 2015 Oct 192015 Oct 21

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ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Suharta, W. G., Suardana, P., Windaryoto, W., Pratapa, S., Suasmoro, S., Darminto, D., ... Isao, W. (2018). Synthesis of REBa2Cu3O7-∂ (RE=Nd, Eu, Gd) Nanoparticles by Wet-Mixing Method. Journal of Physics: Conference Series, 1091(1), [012027]. https://doi.org/10.1088/1742-6596/1091/1/012027