Nonlocal electrical detection of reciprocal orbital Edelstein effect
Abstract The orbital Edelstein effect and orbital Hall effect, where a charge current induces a nonequilibrium orbital angular momentum, offer a promising method for efficiently manipulating nanomagnets using light elements. Despite extensive research, understanding the Onsager’s reciprocity of orbi...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2025-07-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-025-61602-7 |
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| author | Weiguang Gao Liyang Liao Hironari Isshiki Nico Budai Junyeon Kim Hyun-Woo Lee Kyung-Jin Lee Dongwook Go Yuriy Mokrousov Shinji Miwa Yoshichika Otani |
| author_facet | Weiguang Gao Liyang Liao Hironari Isshiki Nico Budai Junyeon Kim Hyun-Woo Lee Kyung-Jin Lee Dongwook Go Yuriy Mokrousov Shinji Miwa Yoshichika Otani |
| author_sort | Weiguang Gao |
| collection | DOAJ |
| description | Abstract The orbital Edelstein effect and orbital Hall effect, where a charge current induces a nonequilibrium orbital angular momentum, offer a promising method for efficiently manipulating nanomagnets using light elements. Despite extensive research, understanding the Onsager’s reciprocity of orbital transport remains elusive. In this study, we experimentally demonstrate the Onsager’s reciprocity of orbital transport in an orbital Edelstein system by utilizing nonlocal measurements. This method enables the precise identification of the chemical potential generated by orbital accumulation, avoiding the limitations associated with local measurements. We observe that the direct and inverse orbital-charge conversion processes produce identical electric voltages, confirming Onsager’s reciprocity in orbital transport. Additionally, we find that the orbital decay length, approximately 100 nm at room temperature, is independent of the Cu thickness and decreases with decreasing temperature, revealing a distinct contrast to the spin transport behavior. Our findings provide valuable insights into both the reciprocity of the charge-orbital interconversion and the nonlocal correlation of orbital degree of freedom, laying the ground for orbitronics devices with long-range interconnections. |
| format | Article |
| id | doaj-art-7487e2bc01b64fb6a4ae24d137940fbb |
| institution | Kabale University |
| issn | 2041-1723 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj-art-7487e2bc01b64fb6a4ae24d137940fbb2025-08-20T03:43:10ZengNature PortfolioNature Communications2041-17232025-07-011611810.1038/s41467-025-61602-7Nonlocal electrical detection of reciprocal orbital Edelstein effectWeiguang Gao0Liyang Liao1Hironari Isshiki2Nico Budai3Junyeon Kim4Hyun-Woo Lee5Kyung-Jin Lee6Dongwook Go7Yuriy Mokrousov8Shinji Miwa9Yoshichika Otani10Institute for Solid State Physics, The University of TokyoInstitute for Solid State Physics, The University of TokyoInstitute for Solid State Physics, The University of TokyoInstitute for Solid State Physics, The University of TokyoCenter for Emergent Matter Science, RIKEN, WakoDepartment of Physics, Pohang University of Science and TechnologyDepartment of Physics, Korea Advanced Institute of Science and TechnologyInstitute of Physics, Johannes Gutenberg University MainzInstitute of Physics, Johannes Gutenberg University MainzInstitute for Solid State Physics, The University of TokyoInstitute for Solid State Physics, The University of TokyoAbstract The orbital Edelstein effect and orbital Hall effect, where a charge current induces a nonequilibrium orbital angular momentum, offer a promising method for efficiently manipulating nanomagnets using light elements. Despite extensive research, understanding the Onsager’s reciprocity of orbital transport remains elusive. In this study, we experimentally demonstrate the Onsager’s reciprocity of orbital transport in an orbital Edelstein system by utilizing nonlocal measurements. This method enables the precise identification of the chemical potential generated by orbital accumulation, avoiding the limitations associated with local measurements. We observe that the direct and inverse orbital-charge conversion processes produce identical electric voltages, confirming Onsager’s reciprocity in orbital transport. Additionally, we find that the orbital decay length, approximately 100 nm at room temperature, is independent of the Cu thickness and decreases with decreasing temperature, revealing a distinct contrast to the spin transport behavior. Our findings provide valuable insights into both the reciprocity of the charge-orbital interconversion and the nonlocal correlation of orbital degree of freedom, laying the ground for orbitronics devices with long-range interconnections.https://doi.org/10.1038/s41467-025-61602-7 |
| spellingShingle | Weiguang Gao Liyang Liao Hironari Isshiki Nico Budai Junyeon Kim Hyun-Woo Lee Kyung-Jin Lee Dongwook Go Yuriy Mokrousov Shinji Miwa Yoshichika Otani Nonlocal electrical detection of reciprocal orbital Edelstein effect Nature Communications |
| title | Nonlocal electrical detection of reciprocal orbital Edelstein effect |
| title_full | Nonlocal electrical detection of reciprocal orbital Edelstein effect |
| title_fullStr | Nonlocal electrical detection of reciprocal orbital Edelstein effect |
| title_full_unstemmed | Nonlocal electrical detection of reciprocal orbital Edelstein effect |
| title_short | Nonlocal electrical detection of reciprocal orbital Edelstein effect |
| title_sort | nonlocal electrical detection of reciprocal orbital edelstein effect |
| url | https://doi.org/10.1038/s41467-025-61602-7 |
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