Operation and Modeling of Semiconductor Spintronics Computing Devices
| Autor: | George I. Bourianoff, Dmitri E. Nikonov |
|---|---|
| Rok vydání: | 2008 |
| Předmět: |
Physics
Semiconductor Bloch equations Spin pumping Condensed matter physics Spintronics business.industry Transistor Magnetic semiconductor Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Condensed Matter Physics Electronic Optical and Magnetic Materials law.invention Condensed Matter::Materials Science Bloch equations law Spin transistor Optoelectronics Field-effect transistor business |
| Zdroj: | Journal of Superconductivity and Novel Magnetism. 21:479-493 |
| ISSN: | 1557-1947 1557-1939 |
| DOI: | 10.1007/s10948-008-0343-y |
| Popis: | Semiconductor spintronic devices are considered from the point of view of suitability for digital logic. Functionality of earlier proposed devices is reviewed for cascadability and signal gain. Spin gain transistor, which uses electronic control of ferromagnetism in semiconductors, is treated in more detail via semiconductor Bloch equations for both localized and free-carrier magnetic moments. Dependence of the steady state magnetization and temporal switching characteristics on material parameters is determined. Finally, fundamental physical limits for spintronic devices are determined via use of an idealized model. They are compared with similar limits for electronic devices. It is found that, though spintronic devices switch slower, their switching energy is smaller, therefore they scale with size on a curve with lower power dissipation. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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