The magnetophonon effect in lead sulphide
F A H Al-Watban; D M Finlayson; F A H Al-Watban; Dept. of Phys., Univ. of St. Andrews, St. Andrews, UK; D M Finlayson; Dept. of Phys., Univ. of St. Andrews, St. Andrews, UK
Журнал:
Journal of Physics C: Solid State Physics
Дата:
1976-05-28
Аннотация:
Magnetophonon resistance oscillations have been observed in n-PbS at 77K. These oscillations arise from scattering of electrons by longitudinal optical phonons between Landau levels when the optical phonon energy h(cross) omega <sub>LO</sub> becomes a multiple of the cyclotron energy h(cross) omega <sub>c</sub>. After corrections for the phase shift arising from the variation in amplitude of the resonance peaks and for the polaron effect, the cyclotron mass is found to be m<sub>c</sub>*=0.083 m<sub>0</sub>.
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