A new mechanism of optoacoustic response in semiconductors
| Autor: | N. V. Chigarev |
|---|---|
| Rok vydání: | 2004 |
| Předmět: |
Phase transition
Materials science Condensed matter physics Solid-state physics Ferromagnetic material properties business.industry Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Condensed Matter Physics Magnetic susceptibility Electronic Optical and Magnetic Materials Photoexcitation Condensed Matter::Materials Science Semiconductor Ferromagnetism Condensed Matter::Strongly Correlated Electrons Spectroscopy business |
| Zdroj: | Physics of the Solid State. 46:234-237 |
| ISSN: | 1090-6460 1063-7834 |
| DOI: | 10.1134/1.1649416 |
| Popis: | Recently grown semiconductors exhibiting ferromagnetic properties can be very promising materials for optoacoustic applications. In these materials, the ferromagnetic phase transition controlled by the density of photoexcited carriers can bring about the generation of sound. The efficiency of this mechanism and the electron-deformation mechanism of photoexcitation of sound are compared. The duration of acoustic pulses generated by the change in the magnetic susceptibility of the sample is estimated. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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