Oscillations of the magnetoresistance in an inclined magnetic field for MIS structures on (100) silicon with a high electron density |
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Authors: | S G Semenchinskii L Smr?ka P Va?ek L Jansen |
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Institution: | (1) All-Russia Scientific-Research Institute of the Metrological Service, 119361 Moscow, Russia;(2) Institute of Physics, Academy of Sciences of the Czech Republic, 162 00 Prague 6, Czech Republic;(3) Grenoble High Magnetic Field Laboratory, BP 166, 38042 Grenoble Cedex 09, France |
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Abstract: | At electron densities N
S>6×10−2 cm−22 a second series of oscillations, which are tentatively attributed to population of the second energy subband, is observed
in addition to the main series of Shubnikov-de Haas oscillations. A change in phase of the oscillations of the second series
is observed at some angle of inclination αe of the field. The measured value of αe is used to calculate the ratio of the cyclotron mass to the effective g factor. The maximum possible cyclotron mass is also determined as m
H< 0.32m
e. On this basis it is concluded that the second series of oscillations is due to electrons which have an in-plane effective
mass m*≈0.2m
e and which belong to the same valleys of the Fermi surface as in the case of the main oscillations.
Pis’ma Zh. éksp. Teor. Fiz. 67, No. 2, 136–140 (25 January 1998) |
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