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| VOLUME 25 (1977) | ISSUE 9 |
PAGE 425
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Cyclotron resonance with surface electrons in liquid helium
Shikin V.B.
It is shown that heating of a system of surface electrons by a high-frequency electromagnetic field under cyclotron-resonance conditions makes it possible to transfer, in controllable fashion, some of the electrons from negative deep levels to positive quasiclassical levels. The presence of quasifree electrons "evaporated" from the surface levels leads to the appearance of characteristic singularities on the cyclotron-resonance curve.
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![](/ps/1412/article_21451_800_head.png "It is shown that heating of a system of surface electrons by a high-frequency electromagnetic field under cyclotron-resonance conditions makes it possible to transfer, in controllable fashion, some of the electrons from negative deep levels to positive quasiclassical levels. The presence of quasifree electrons "evaporated" from the surface levels leads to the appearance of characteristic singularities on the cyclotron-resonance curve.")