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<p>The exploration of diluted magnetic semiconductors (DMS) is driven by their promising utility in spintronic and developing versatile electronic device technologies. In view of this, the present study explores room-temperature ferromagnetism and dielectric properties of Fe-doped SnSe. A simple hydrothermal method is adopted to synthesize polycrystalline Fe doped SnSe (Fe<sub>x</sub>Sn<sub>1-x</sub>Se) (<i>x</i> = 0.00, 0.01, 0.03, 0.05, 0.10, and 0.20) with various molar concentrations of Fe. Structural analysis from X-Ray Diffraction (XRD), revealed the successful doping of Fe into SnSe and orthorhombic single phase of all the samples. Field Emission&#xa0;Scanning Electron Microscope (FESEM) showed the morphology of pure SnSe are plate like structures and that are deformed into micro rods&#xa0;and nanoparticles&#xa0;with Fe doping. Bandgap studies from UV–Vis-NIR diffuse reflectance spectroscopy illustrated the reduction in the bandgap values with Fe doping except for <i>x</i> = 0.10. X-Ray photoelectron spectroscopy (XPS) identified the chemical states of Sn, Se, and Fe. Magnetic studies using Vibrating Sample Magnetometer (VSM) have elucidated the ferromagnetism in Fe<sub>x</sub>Sn<sub>1-x</sub>Se at room temperature. Additionally, the dielectric measurements demonstrated interesting frequency-dependent behaviour, suggesting potential applications in multifunctional electronic devices. This study provides insights into DMS material and promising avenues for exploiting their magneto-electric functionalities in future technological advancements. </p>

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Exploring ferromagnetic behaviour and dielectric properties of Fe-doped SnSe for spintronic applications

  • 期刊论文

  • 发表日期：

    2025年7月13日

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  • Manjula Nerella,
  • Nagaraju Macherla,
  • Madireddy Buchi Suresh,
  • Sobha Bathulapalli,
  • Ravindranadh Koutavarapu,
  • Jaesool Shim

摘要

The exploration of diluted magnetic semiconductors (DMS) is driven by their promising utility in spintronic and developing versatile electronic device technologies. In view of this, the present study explores room-temperature ferromagnetism and dielectric properties of Fe-doped SnSe. A simple hydrothermal method is adopted to synthesize polycrystalline Fe doped SnSe (FexSn1-xSe) (x = 0.00, 0.01, 0.03, 0.05, 0.10, and 0.20) with various molar concentrations of Fe. Structural analysis from X-Ray Diffraction (XRD), revealed the successful doping of Fe into SnSe and orthorhombic single phase of all the samples. Field Emission Scanning Electron Microscope (FESEM) showed the morphology of pure SnSe are plate like structures and that are deformed into micro rods and nanoparticles with Fe doping. Bandgap studies from UV–Vis-NIR diffuse reflectance spectroscopy illustrated the reduction in the bandgap values with Fe doping except for x = 0.10. X-Ray photoelectron spectroscopy (XPS) identified the chemical states of Sn, Se, and Fe. Magnetic studies using Vibrating Sample Magnetometer (VSM) have elucidated the ferromagnetism in FexSn1-xSe at room temperature. Additionally, the dielectric measurements demonstrated interesting frequency-dependent behaviour, suggesting potential applications in multifunctional electronic devices. This study provides insights into DMS material and promising avenues for exploiting their magneto-electric functionalities in future technological advancements.