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<p>Co<sup>2+</sup> doped La<sub>2</sub>CuO<sub>4</sub> nanoparticles are prepared by combustion method. The prepared samples are analysed such as structural, magnetic, functional and optical characterization. The development of single-phase orthorhombic crystals with a <i>Bmab</i> space group was verified by X-ray diffraction patterns. The monophasic orthorhombic lattice structure of the material has crystallite size that falls between 28 and 41&#xa0;nm. The lattice constant falls between a = 5.361 Å − 5.349 Å, b = 5.410 Å − 5.399 Å &amp; c = 13.160 Å − 13.148 Å. The XRD of La<sub>2</sub>CuO<sub>4</sub> perovskite nanomaterials correspond well with the calculated ones, with χ<sup>2</sup> values closer to 1. Energy gap values decreases from 1.75 to 1.68&#xa0;eV due to the quantum confinement. The hysteresis curves recorded at 300&#xa0;K show that coercivity ranges from 210.09 to 177.37 Oe as the content decreases, confirming that the crystallite size increase. The samples were with soft ferromagnetic behavior found in the VSM study.</p>

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Impact of Co2+ Substituted La2CuO4 Nanoparticles: Structural, Morphological, Optical and Magnetic Behaviour

  • 期刊论文

  • 发表日期：

    2025年3月9日

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  • Chandra Sekhar Dash,
  • S. Yuvaraj,
  • Rajabathar Jothi Ramalingam,
  • S. Iqbal,
  • R. S. Rimal Isaac,
  • Aboud A. Bahajjaj,
  • M. Sundararajan,
  • M. Sukumar,
  • L. Rajadurai,
  • Young-Ho Ahn,
  • Sivasankaran Ayyaru

摘要

Co2+ doped La2CuO4 nanoparticles are prepared by combustion method. The prepared samples are analysed such as structural, magnetic, functional and optical characterization. The development of single-phase orthorhombic crystals with a Bmab space group was verified by X-ray diffraction patterns. The monophasic orthorhombic lattice structure of the material has crystallite size that falls between 28 and 41 nm. The lattice constant falls between a = 5.361 Å − 5.349 Å, b = 5.410 Å − 5.399 Å & c = 13.160 Å − 13.148 Å. The XRD of La2CuO4 perovskite nanomaterials correspond well with the calculated ones, with χ2 values closer to 1. Energy gap values decreases from 1.75 to 1.68 eV due to the quantum confinement. The hysteresis curves recorded at 300 K show that coercivity ranges from 210.09 to 177.37 Oe as the content decreases, confirming that the crystallite size increase. The samples were with soft ferromagnetic behavior found in the VSM study.