Effect of pressure on “high-temperature” oscillation period of magnetoresistance in bismuth
A. G. BudarinInstitute of High-Pressure Physics, Academy of Sciences of the USSR, Troitsk 1V. A. VenttselInstitute of High-Pressure Physics, Academy of Sciences of the USSR, Troitsk 1A. V. RudnevInstitute of High-Pressure Physics, Academy of Sciences of the USSR, Troitsk 1Yu. A. BogodPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, Kharkov 2Vit. B. Krasovitskiı̆Physicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, Kharkov 2
ABI
Аннотация
Baric coefficients of frequency of high-temperature oscillations (HTO) and Shubnikov–de Haas oscillations are measured under true hydrostatic conditions. It is shown that the baric coefficients of extreme cross sections of the Fermi surfaces in bismuth in the pressure range from 0 to 0.14 kbar differ from the extrapolated data obtained in chambers with a fixed pressure. The effect of uniform compression on the HTO period is explained in terms of theoretical concepts according to which the HTO are associated with intervalley quasi-elastic scattering of charge carriers at the zone edges.
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