Giant Quantum Attenuation of Sound Waves in Antimony. I. Deformation Potential Constants and Spin Splitting Factors of Electrons

The giant quantum attenuation of longitudinal sound waves in antimony was investigated in pulsed magnetic fields up to 170 kG, at temperatures of about 1.6 K and at sound wave frequencies of 60 and 100 Mc/s. The values of the deformation potential tensor components for the electrons in the principal pocket obtained from an amplitude analysis are as follows: | D x x (e) |=6.1 eV, | D y y (e) |=7.9 eV, | D z z (e) |=0.44 eV, and D x x (e) / D y y (e) =-0.77, where x -, y - and z -axis refer to a binary, a bisectrix and the trigonal axis respectively. A determination of the anisotropy of spin splitting factors (spin splitting/Landau splitting) of the electrons is made for two cases of H ∥ x y -plane and H ∥ y z -plane.