Sub-tesla on-chip nanomagnetic metamaterial platform for angle-resolved photoemission spectroscopy
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| Main Authors: | , , , , , , , , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866908719509405696 |
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| author | Li, Wenxin Wanichwecharungruang, Wisha Guo, Mingyang Chioar, Ioan-Augustin Nandakumaran, Nileena Ramberger, Justin Li, Senlei Kang, Zhibo Yang, Jinming Lu, Donghui Hashimoto, Makoto Du, Chunhui Rita Leighton, Chris Schiffer, Peter Ma, Qiong Yi, Ming He, Yu |
| author_facet | Li, Wenxin Wanichwecharungruang, Wisha Guo, Mingyang Chioar, Ioan-Augustin Nandakumaran, Nileena Ramberger, Justin Li, Senlei Kang, Zhibo Yang, Jinming Lu, Donghui Hashimoto, Makoto Du, Chunhui Rita Leighton, Chris Schiffer, Peter Ma, Qiong Yi, Ming He, Yu |
| contents | Magnetically controlled states in quantum materials are central to their unique electronic and magnetic properties. However, direct momentum-resolved visualization of these states via angle-resolved photoemission spectroscopy (ARPES) has been hindered by the disruptive effect of magnetic fields on photoelectron trajectories. Here, we introduce an \textit{in-situ} method that is, in principle, capable of applying magnetic fields up to 1 T. This method uses substrates composed of nanomagnetic metamaterial arrays with alternating polarity. Such substrates can generate strong, homogeneous, and spatially confined fields applicable to samples with thicknesses up to the micron scale, enabling ARPES measurements under magnetic fields with minimal photoelectron trajectory distortion. We demonstrate this minimal distortion with ARPES data taken on monolayer graphene. Our method paves the way for probing magnetic field-dependent electronic structures and studying field-tunable quantum phases with state-of-the-art energy-momentum resolutions. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2509_15092 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Sub-tesla on-chip nanomagnetic metamaterial platform for angle-resolved photoemission spectroscopy Li, Wenxin Wanichwecharungruang, Wisha Guo, Mingyang Chioar, Ioan-Augustin Nandakumaran, Nileena Ramberger, Justin Li, Senlei Kang, Zhibo Yang, Jinming Lu, Donghui Hashimoto, Makoto Du, Chunhui Rita Leighton, Chris Schiffer, Peter Ma, Qiong Yi, Ming He, Yu Mesoscale and Nanoscale Physics Materials Science Strongly Correlated Electrons Magnetically controlled states in quantum materials are central to their unique electronic and magnetic properties. However, direct momentum-resolved visualization of these states via angle-resolved photoemission spectroscopy (ARPES) has been hindered by the disruptive effect of magnetic fields on photoelectron trajectories. Here, we introduce an \textit{in-situ} method that is, in principle, capable of applying magnetic fields up to 1 T. This method uses substrates composed of nanomagnetic metamaterial arrays with alternating polarity. Such substrates can generate strong, homogeneous, and spatially confined fields applicable to samples with thicknesses up to the micron scale, enabling ARPES measurements under magnetic fields with minimal photoelectron trajectory distortion. We demonstrate this minimal distortion with ARPES data taken on monolayer graphene. Our method paves the way for probing magnetic field-dependent electronic structures and studying field-tunable quantum phases with state-of-the-art energy-momentum resolutions. |
| title | Sub-tesla on-chip nanomagnetic metamaterial platform for angle-resolved photoemission spectroscopy |
| topic | Mesoscale and Nanoscale Physics Materials Science Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2509.15092 |