Magnetic hysteresis control in thin film Fe/Si multilayers by incorporation of B4C
Fuente:
arXiv
Salvato in:
| Autori principali: | , , , , , , , , , , , , , , |
|---|---|
| Natura: | Preprint |
| Pubblicazione: |
2025
|
| Soggetti: | |
| Accesso online: | |
| Tags: |
Aggiungi Tag
Nessun Tag, puoi essere il primo ad aggiungerne!!
|
| _version_ | 1866929711928573952 |
|---|---|
| author | Zubayer, Anton Hanashima, Takayasu Sugiyama, Jun David, Anna Liu, Xianjie Ghafoor, Naureen Stahn, Jochen Glavic, Artur Murakami, Yasukazu Takehiro, Tamaoka Tomita, Yuta Auchi, M. Birch, Jens Fahlman, Mats Eriksson, Fredrik |
| author_facet | Zubayer, Anton Hanashima, Takayasu Sugiyama, Jun David, Anna Liu, Xianjie Ghafoor, Naureen Stahn, Jochen Glavic, Artur Murakami, Yasukazu Takehiro, Tamaoka Tomita, Yuta Auchi, M. Birch, Jens Fahlman, Mats Eriksson, Fredrik |
| contents | Magnetic hysteresis properties in Fe/Si multilayers have been studied as a function of the B4C content to control magnetization amplitude, coercivity, and hysteresis tilt, properties that are beneficial to tune for advancing applications in e.g. data storage, spintronics, and sensors. With an ion-assisted magnetron sputtering technique, 35 distinct thin film multilayer samples were prepared and their magnetic and structural properties were characterized by vibrating sample magnetometry, X-ray photoelectron spectroscopy, near edge X-ray absorption fine structure spectroscopy, and X-ray and neutron scattering methods. Key findings indicate that adding B4C lowers the coercivity and can decrease the saturation magnetization, demonstrating the tunability of magnetic responses based on composition. For samples with =30Å periodicity, 10-15% of B4C addition produces antiferromagnetically (AF) coupled multilayers, and such AF coupling strength increases with the B4C content. Our findings reveal that B atoms do not chemically bind within the Fe atoms but instead occupy interstitial positions, disrupting medium- to long-range crystallinity thereby inducing the amorphization. Thereon, the observed effects on magnetic properties are directly attributed to this amorphization process caused by the presence of B4C. The demonstrated ability to finely adjust magnetic properties by varying the B4C content offers a promising approach to overcome challenges in magnetic device performance and efficiency. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2502_08327 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Magnetic hysteresis control in thin film Fe/Si multilayers by incorporation of B4C Zubayer, Anton Hanashima, Takayasu Sugiyama, Jun David, Anna Liu, Xianjie Ghafoor, Naureen Stahn, Jochen Glavic, Artur Murakami, Yasukazu Takehiro, Tamaoka Tomita, Yuta Auchi, M. Birch, Jens Fahlman, Mats Eriksson, Fredrik Materials Science Magnetic hysteresis properties in Fe/Si multilayers have been studied as a function of the B4C content to control magnetization amplitude, coercivity, and hysteresis tilt, properties that are beneficial to tune for advancing applications in e.g. data storage, spintronics, and sensors. With an ion-assisted magnetron sputtering technique, 35 distinct thin film multilayer samples were prepared and their magnetic and structural properties were characterized by vibrating sample magnetometry, X-ray photoelectron spectroscopy, near edge X-ray absorption fine structure spectroscopy, and X-ray and neutron scattering methods. Key findings indicate that adding B4C lowers the coercivity and can decrease the saturation magnetization, demonstrating the tunability of magnetic responses based on composition. For samples with =30Å periodicity, 10-15% of B4C addition produces antiferromagnetically (AF) coupled multilayers, and such AF coupling strength increases with the B4C content. Our findings reveal that B atoms do not chemically bind within the Fe atoms but instead occupy interstitial positions, disrupting medium- to long-range crystallinity thereby inducing the amorphization. Thereon, the observed effects on magnetic properties are directly attributed to this amorphization process caused by the presence of B4C. The demonstrated ability to finely adjust magnetic properties by varying the B4C content offers a promising approach to overcome challenges in magnetic device performance and efficiency. |
| title | Magnetic hysteresis control in thin film Fe/Si multilayers by incorporation of B4C |
| topic | Materials Science |
| url | https://arxiv.org/abs/2502.08327 |