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2009 | 115 | 6 | 1025-1027
Article title

Solid State Plasma in the Pulse Modulated Magnetic Field

Content
Title variants
Languages of publication
EN
Abstracts
EN
Radio frequency (RF) magnetoplasmic waves known as helicons will propagate in solid-state plasma of semiconductors when a strong magnetic field is applied. Helicons have an exact analogy with an electromagnetic whistler wave which is frequently propagated in the low density plasma of the Earth ionosphere. In our experiments the modulated magnetic field is being used for excitation of helicons. It is shown that in the case of pulse modulated field along with the RF helicon waves the transient cyclotron frequency oscillations exist in the semiconductor plasma. For observation of the cyclotron radiation frequency ω_c the modulation depth about one percent is sufficient. The measurement of ω_c provides an opportunity to determine the masses of electrons and holes in solid-state plasma of semiconductors. In already existing method the absorption of electromagnetic radiation on the cyclotron frequency is being used. For this case it is necessary to have an external infrared generator. In our method the cyclotron radiation is being generated by electrons (or holes) directly and additional external excitation is not needed.
Keywords
EN
Year
Volume
115
Issue
6
Pages
1025-1027
Physical description
Dates
published
2009-06
References
  • 1. See, for example, A. Libchaber, R. Veilex, Phys. Rev. 127, 774 (1962)
  • 2. Z. Jankauskas, L. Laurinavičius, Electronics and Electrical Engineering 37, 32 (2002)
  • 3. C.R. Paul, S.A. Nasar, L.E. Unnewehr, Introduction to Electrical Engineering, McGraw-Hill, New York 1992, p. 771
  • 4. Z. Jankauskas, V. Kvedaras, L. Laurinavičius, Physica B 346-347, 539 (2004)
Document Type
Publication order reference
YADDA identifier
bwmeta1.element.bwnjournal-article-appv115n625kz
Identifiers
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