FERMI-SURFACE OF LOW CARRIER COMPOUND CEBI

Fermi surface of low carrier compound CeBi has been investigated by th e acoustic dHvA measurement of ultrasonic waves. The Fermi surfaces ob served in the ferromagnetic phase of CeBi consist of the hole surfaces beta(1), beta(2), beta(3) and beta(4) located at Gamma point and the electron surfaces alpha, gamma at X points. The angular variation of t he dHvA frequencies in CeBi is reproduced by the result of the band ca lculation based on the p-f mixing effect.