Free-Carrier Plasmons as a Novel Tool in Semiconductor Physics |
| W. Szuszkiewicz Institute of Experimental Physics, Warsaw University, Hoża 69, 00-681 Warszawa, Poland W. Bardyszewski Institute of Theoretical Physics, Warsaw University, Warsaw, Poland Qian Dingrong, Zhang Jiaming Shanghai Institute of Technical Physics, Academia Sinica, Shanghai, China C. Julien, M. Balkanski Laboratoire de Physique des Solides, Université Paris VI, Paris, France B. Witkowska and A. Mycielski Institute of Physics, Polish Academy of Sciences, Warsaw, Poland |
| (Received: August 8, 1990) |
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| It is demonstrated that free-carrier plasmons, being well defined collective excitations of the electron gas in the range of small wave vectors, can serve as a sensitive tool to investigate the optical processes related to the small momentum transfers. As an example the system HgSe:Fe is analysed both experimentally and theoretically. |
| DOI: 10.12693/APhysPolA.79.141 PACS numbers: 71.45.Gm, 72.30.+q, 75.50.Pp |