Electron tunneling measurements have been performed to investigate the
anisotropic effect in both the band structure and the phonons of semi
metal antimony films. Depending upon the texturization of antimony fil
ms, the definite change in shape of the tunnel conductance is observed
and the intravalley acoustic phonon peak becomes apparent as well as
the intervalley acoustic and optical phonon peaks in the second deriva
tives. Furthermore, the overtone phonon peak exhibits an asymmetric st
ructure contrary to that of the Raman spectrum. This asymmetry is not
observed in point contact spectra.