Scholarlink

Magnetic nanoparticlesNanoparticle and thin films have attracted considerable interest over recent decades due to their versatile applications in high-densityDensity magnetic recording, data storage, spintronics, solar cells, and sensors. Among these, cobalt ferriteCobalt ferrite (CoFeO) thin films (CoFe2O4) has emerged as a prominent material, valued for its excellent electromagnetic performance, chemical stability, mechanical hardness, and high cubicCubic magnetocrystalline anisotropyAnisotropy. Here, we investigate the structural, magnetic, and vibrational propertiesProperties of cobalt ferrite (CoFe2O4) thin filmsCobalt ferrite (CoFeO) thin films coated with gold, using Raman spectroscopyRaman spectroscopy and computational methods. The gold coatingGold coating enhances surface conductivityConductivity and stability while influencing the material's vibrational modes and magnetic anisotropyMagnetic anisotropy. Raman spectra revealed the suppression of key Raman-active modes, including 693 cm−1 (A₁g) and 465 cm−1 (F2g), reflecting restricted Fe–O vibrations at tetrahedral and octahedral sites. First-principles calculations based on Density Functional Theory (DFTDensity Functional Theory (DFT)) corroborate these findings, showing metallic bonding at the Au/CoFe2O4 interfaceInterface and enhanced magnetic moments of surface atoms. The present experimental and computational investigations highlight the tunable propertiesProperties of gold-coated CoFe2O4 films for advanced technological applications.

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Raman Spectroscopic and Computational Investigation of Gold-Coated CoFe2O4 Thin Films

  • 会议论文

  • 发表日期：

    2026年

查看全文
  • Tej N. Lamichhane,
  • Tolga Aytug,
  • Bishnu Prashad Thapaliya,
  • Shannon M. Mahurin,
  • Venkateswara Yenugonda,
  • Arjun K. Pathak,
  • K. C. Santosh,
  • Tim R. Charlton,
  • M. Parans Paranthaman

摘要

Magnetic nanoparticlesNanoparticle and thin films have attracted considerable interest over recent decades due to their versatile applications in high-densityDensity magnetic recording, data storage, spintronics, solar cells, and sensors. Among these, cobalt ferriteCobalt ferrite (CoFeO) thin films (CoFe2O4) has emerged as a prominent material, valued for its excellent electromagnetic performance, chemical stability, mechanical hardness, and high cubicCubic magnetocrystalline anisotropyAnisotropy. Here, we investigate the structural, magnetic, and vibrational propertiesProperties of cobalt ferrite (CoFe2O4) thin filmsCobalt ferrite (CoFeO) thin films coated with gold, using Raman spectroscopyRaman spectroscopy and computational methods. The gold coatingGold coating enhances surface conductivityConductivity and stability while influencing the material's vibrational modes and magnetic anisotropyMagnetic anisotropy. Raman spectra revealed the suppression of key Raman-active modes, including 693 cm−1 (A₁g) and 465 cm−1 (F2g), reflecting restricted Fe–O vibrations at tetrahedral and octahedral sites. First-principles calculations based on Density Functional Theory (DFTDensity Functional Theory (DFT)) corroborate these findings, showing metallic bonding at the Au/CoFe2O4 interfaceInterface and enhanced magnetic moments of surface atoms. The present experimental and computational investigations highlight the tunable propertiesProperties of gold-coated CoFe2O4 films for advanced technological applications.