Temperature Damping of Plasmons in Nonparabolic Band |
| Stefan Goettig Institute of Physics, Warsaw University of Technology, Koszykowa 75, 00-662 Warszawa, Poland |
| Received: August 8, 1990 |
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| Damping of plasmons in the nonparabolic free-carrier band of a semiconductor is considered within RPA. Due to the nonparabolic band shape the temperature broadening of plasmons is strongly reduced and even at high temperatures plasmons with large wavevectors may exist as undamped excitations. |
| DOI: 10.12693/APhysPolA.79.333 PACS numbers: 71.45.Gm |