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

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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:<BR>|Dxx(e)|=6.1 eV, |Dyy(e)|=7.9 eV, |Dzz(e)|=0.44 eV, and Dxx(e)⁄Dyy(e)=−0.77,<BR>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||xy-plane and H||yz-plane.

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