Biquadratic exchange coupling effect on the magnetic properties of (Fe/Ti) multilayers
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arXiv
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| Format: | Preprint |
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2026
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| author | Yactayo, Melissa Tarazona, H. S. Copie, O. Rojas-Sánchez, J. -C. Quispe-Marcatoma, J. Landauro, C. V. |
| author_facet | Yactayo, Melissa Tarazona, H. S. Copie, O. Rojas-Sánchez, J. -C. Quispe-Marcatoma, J. Landauro, C. V. |
| contents | This work explores the static and dynamic magnetic properties of weakly antiferromagnetically coupled Fe/Ti superlattices, emphasizing the link between magnetic behavior and structural characteristics. HRTEM and XRD analyses confirm alternating Fe and Ti layers with rough interfaces, especially in upper layers. Magnetic measurements reveal two-step hysteresis loops and a temperature and thickness-dependent interlayer exchange coupling (IEC). A macrospin model incorporating bilinear and biquadratic coupling reproduces the experimental data and supports a phase diagram analysis identifying non-collinear configurations. The results underscore the impact of structural imperfections and highlight the crucial role of biquadratic exchange in Fe/Ti/Fe multilayers. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2605_14545 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Biquadratic exchange coupling effect on the magnetic properties of (Fe/Ti) multilayers Yactayo, Melissa Tarazona, H. S. Copie, O. Rojas-Sánchez, J. -C. Quispe-Marcatoma, J. Landauro, C. V. Materials Science This work explores the static and dynamic magnetic properties of weakly antiferromagnetically coupled Fe/Ti superlattices, emphasizing the link between magnetic behavior and structural characteristics. HRTEM and XRD analyses confirm alternating Fe and Ti layers with rough interfaces, especially in upper layers. Magnetic measurements reveal two-step hysteresis loops and a temperature and thickness-dependent interlayer exchange coupling (IEC). A macrospin model incorporating bilinear and biquadratic coupling reproduces the experimental data and supports a phase diagram analysis identifying non-collinear configurations. The results underscore the impact of structural imperfections and highlight the crucial role of biquadratic exchange in Fe/Ti/Fe multilayers. |
| title | Biquadratic exchange coupling effect on the magnetic properties of (Fe/Ti) multilayers |
| topic | Materials Science |
| url | https://arxiv.org/abs/2605.14545 |