Magnetic resonance and microwave resistance modulation in van der Waals colossal-magnetoresistance material
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| Format: | Preprint |
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2025
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| author | Tanaka, Miuko Ahad, Abdul Deaconu, Darius-Alexandru Shah, Varun Nishio-Hamane, Daisuke Ishii, Tomohiro Hashisaka, Masayuki Sakamoto, Shoya Miwa, Shinji Bahramy, Mohammad Saeed Ideue, Toshiya |
| author_facet | Tanaka, Miuko Ahad, Abdul Deaconu, Darius-Alexandru Shah, Varun Nishio-Hamane, Daisuke Ishii, Tomohiro Hashisaka, Masayuki Sakamoto, Shoya Miwa, Shinji Bahramy, Mohammad Saeed Ideue, Toshiya |
| contents | Colossal magnetoresistance (CMR) is a fascinating quantum phenomenon that continues to draw significant interest in condensed matter physics. Mn3Si2Te6 has emerged as a prototypical CMR material, notable for its puzzling magnetoresistance behavior and pronounced directional anisotropy. Despite extensive research, the mechanisms driving CMR in Mn3Si2Te6 remain elusive [1-4]. In this work, we explore the magnetic resonance of Mn3Si2Te6 and observe a reduced g-factor for magnetic fields applied along the crystalline c-axis compared to the ab-plane, indicating a substantial orbital magnetization contribution along the c-axis. Furthermore, we detect resistance modulation under resonance conditions, suggesting that CMR in Mn3Si2Te6 is sensitive to the out-of-the plane spin polarization. These findings shed new light on the role of orbital magnetic moment in Mn3Si2Te6, offering a deeper understanding of the interplay between spin, orbital and lattice degrees of freedom of electrons in this system. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2509_02901 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Magnetic resonance and microwave resistance modulation in van der Waals colossal-magnetoresistance material Tanaka, Miuko Ahad, Abdul Deaconu, Darius-Alexandru Shah, Varun Nishio-Hamane, Daisuke Ishii, Tomohiro Hashisaka, Masayuki Sakamoto, Shoya Miwa, Shinji Bahramy, Mohammad Saeed Ideue, Toshiya Materials Science Mesoscale and Nanoscale Physics Colossal magnetoresistance (CMR) is a fascinating quantum phenomenon that continues to draw significant interest in condensed matter physics. Mn3Si2Te6 has emerged as a prototypical CMR material, notable for its puzzling magnetoresistance behavior and pronounced directional anisotropy. Despite extensive research, the mechanisms driving CMR in Mn3Si2Te6 remain elusive [1-4]. In this work, we explore the magnetic resonance of Mn3Si2Te6 and observe a reduced g-factor for magnetic fields applied along the crystalline c-axis compared to the ab-plane, indicating a substantial orbital magnetization contribution along the c-axis. Furthermore, we detect resistance modulation under resonance conditions, suggesting that CMR in Mn3Si2Te6 is sensitive to the out-of-the plane spin polarization. These findings shed new light on the role of orbital magnetic moment in Mn3Si2Te6, offering a deeper understanding of the interplay between spin, orbital and lattice degrees of freedom of electrons in this system. |
| title | Magnetic resonance and microwave resistance modulation in van der Waals colossal-magnetoresistance material |
| topic | Materials Science Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2509.02901 |