Zutic, Igor and Fabian, Jaroslav and Erwin, Steven C. (2007) Bipolar spintronics: from spin injection to spin-controlled logic. JOURNAL OF PHYSICS-CONDENSED MATTER, 19 (16): 165219. ISSN 0953-8984, 1361-648X
Full text not available from this repository.Abstract
An impressive success of spintronic applications has been typically realized in metal-based structures which utilize magnetoresistive effects for substantial improvements in the performance of computer hard drives and magnetic random access memories. Correspondingly, the theoretical understanding of spin-polarized transport is usually limited to a metallic regime in a linear response, which, while providing a good description for data storage and magnetic memory devices, is not sufficient for signal processing and digital logic. In contrast, much less is known about possible applications of semiconductor-based spintronics and spin-polarized transport in related structures which could utilize strong intrinsic nonlinearities in current-voltage characteristics to implement spin-based logic. Here we discuss the challenges for realizing a particular class of structures in semiconductor spintronics: our proposal for bipolar spintronic devices in which carriers of both polarities ( electrons and holes) contribute to spin-charge coupling. We formulate the theoretical framework for bipolar spin-polarized transport, and describe several novel effects in two- and three-terminal structures which arise from the interplay between nonequilibrium spin and equilibrium magnetization.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | III-V SEMICONDUCTORS; MAGNETIC TUNNEL-JUNCTIONS; MOLECULAR-BEAM EPITAXY; HOT-ELECTRON TRANSPORT; ROOM-TEMPERATURE; FERROMAGNETIC-SEMICONDUCTOR; NONMAGNETIC SEMICONDUCTORS; VALVE TRANSISTOR; FIELD CONTROL; PN JUNCTIONS; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics > Chair Professor Richter > Group Jaroslav Fabian |
| Depositing User: | Petra Gürster |
| Date Deposited: | 29 Oct 2020 09:16 |
| Last Modified: | 29 Oct 2020 09:16 |
| URI: | https://pred.uni-regensburg.de/id/eprint/32874 |
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