TY - JOUR
T1 - Dispersion relation of surface phonon of TaC(1 0 0) studied by high resolution electron energy loss spectroscopy
AU - Oshima, C.
AU - Souda, R.
AU - Aono, M.
AU - Otani, S.
AU - Ishizawa, Y.
PY - 1986
Y1 - 1986
N2 - The dispersion curves of the surface phonon of the clean TaC(1 0 0) have been experimentally determined over the entire Brillouin zone of the Λ-M symmetry axis. This includes the first experimental observation of the Lucas mode, one of the microscopic optical surface phonon studied by using high resolution electron energy loss spectroscopy. From both the selection rule of the scattering and the vibrational energy (frequency), each mode has been assigned. Those dispersion curves strongly suggest the enhancement of the force constant of the surface atoms.
AB - The dispersion curves of the surface phonon of the clean TaC(1 0 0) have been experimentally determined over the entire Brillouin zone of the Λ-M symmetry axis. This includes the first experimental observation of the Lucas mode, one of the microscopic optical surface phonon studied by using high resolution electron energy loss spectroscopy. From both the selection rule of the scattering and the vibrational energy (frequency), each mode has been assigned. Those dispersion curves strongly suggest the enhancement of the force constant of the surface atoms.
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U2 - 10.1016/0038-1098(86)90158-4
DO - 10.1016/0038-1098(86)90158-4
M3 - Article
AN - SCOPUS:0022488195
VL - 57
SP - 283
EP - 286
JO - Solid State Communications
JF - Solid State Communications
SN - 0038-1098
IS - 4
ER -