About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Chemistry and Physics of Interfaces
|
| Presentation Title |
Raman Spectroscopic and Computational Investigation of Gold-Coated CoFe₂O₄ Thin Films |
| Author(s) |
Tej Lamichhane, Tolga Aytug, Bishnu Prasad Thapaliya, Shannon M Mahurin, Venkateswara Yenugonda, Arjun Pathak, Santosh KC, Timothy R Charlaton, M Parans Paranthaman |
| On-Site Speaker (Planned) |
Tej Lamichhane |
| Abstract Scope |
Magnetic nanoparticles and thin films have garnered significant interest in recent decades due to their broad applications in high-density magnetic recording, data storage, spintronics, solar cells, and sensors. Among these, cobalt ferrite (CoFe₂O₄) has gained attention as a leading material because of its remarkable electromagnetic properties, chemical stability, mechanical hardness, and high cubic magnetocrystalline anisotropy. In this study, we explore the structural, magnetic, and vibrational characteristics of gold-coated cobalt ferrite (CoFe₂O₄) thin films using Raman spectroscopy and computational modeling. The gold coating improves surface conductivity and stability and affects the vibrational modes and magnetic anisotropy. Raman spectra showed suppression of key Raman-active modes—693 cm⁻¹ (A₁g) and 465 cm⁻¹ (F₂g)—indicating restricted Fe–O vibrations at tetrahedral and octahedral sites. First-principles Density Functional Theory (DFT) calculations support this, revealing metallic bonding at the Au/CoFe₂O₄ interface and enhanced surface atom magnetic moments. These findings demonstrate the tunable properties of gold-coated CoFe₂O₄ for advanced technologies. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Magnetic Materials, Thin Films and Interfaces, Computational Materials Science & Engineering |