Two-dimensional magnetic tunnel p-n junctions for low-power electronics
Wenkai Zhu, Ziao Wang, Tiangui Hu, Zakhar R Kudrynskyi, Tong Zhou, Zakhar D Kovalyuk, Ce Hu, Hailong Lin, Xiaodong Li, Yongcheng Deng, Quanshan Lv, Lixia Zhao, Amalia Patanè, Igor Žutić, Houzhi Zheng, Kaiyou Wang · 2025
Read Two-dimensional magnetic tunnel p-n junctions for low-power electronics by Wenkai Zhu, Ziao Wang, Tiangui Hu, Zakhar R Kudrynskyi, Tong Zhou, Zakhar D Kovalyuk, Ce Hu, Hailong Lin, Xiaodong Li, Yongcheng Deng, Quanshan Lv, Lixia Zhao, Amalia Patanè, Igor Žutić, Houzhi Zheng, Kaiyou Wang (2025) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/pmc-12868747.txt.
Description
Wenkai Zhu and sixteen co-authors report a magnetic tunnel junction built from atomically thin materials that produces large spin signals, in this 2025 paper. The device is a p-n junction only nanometers thick, and it generates, steers, and detects electron spin without any applied voltage. Such effects feed low-power spintronic electronics.
The junction's tunneling magnetoresistance reached eleven hundred percent at a tiny bias current. Stranger still, at zero bias the device produced a spin voltage effect above thirty thousand percent, far beyond any magnetoresistance signal reported before. The team traces the effect to uneven diffusion: spin-up and spin-down electrons cross the junction at different rates, pushed by its built-in electric field while it trades energy with its surroundings. They call the state a spin-engine regime. The findings suggest new ways to transform and amplify spin information for electronics that sip power.
Catalog record
| CREATOR | Wenkai Zhu, Ziao Wang, Tiangui Hu, Zakhar R Kudrynskyi, Tong Zhou, Zakhar D Kovalyuk, Ce Hu, Hailong Lin, Xiaodong Li, Yongcheng Deng, Quanshan Lv, Lixia Zhao, Amalia Patanè, Igor Žutić, Houzhi Zheng, Kaiyou Wang |
|---|---|
| YEAR | 2025 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 32 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |