TY - JOUR
T1 - Vibrationally resolved two-photon photoemission spectroscopy for lead phthalocyanine film on graphite
AU - Shibuta, M.
AU - Yamamoto, K.
AU - Miyakubo, K.
AU - Yamada, T.
AU - Munakata, T.
PY - 2009/9/30
Y1 - 2009/9/30
N2 - Vibronic structure has been resolved in two-photon photoemission (2PPE) from the highest occupied molecular orbital (HOMO)-derived level of lead phthalocyanine film formed on graphite. The 2PPE from the HOMO-derived level was enhanced by the resonance with the third lowest unoccupied molecular orbital (LUMO+2) -derived level. At photon energies below and well above the resonance, the intensity of the vibronic structure was similar to that of one-photon photoemission. On the other hand, the vibronic structure was significantly weak at photon energies slightly above (<0.4 eV) the resonance. The decrease in the vibronic structure was attributed to the nuclear motion of molecule in the intermediate state associated with LUMO+2.
AB - Vibronic structure has been resolved in two-photon photoemission (2PPE) from the highest occupied molecular orbital (HOMO)-derived level of lead phthalocyanine film formed on graphite. The 2PPE from the HOMO-derived level was enhanced by the resonance with the third lowest unoccupied molecular orbital (LUMO+2) -derived level. At photon energies below and well above the resonance, the intensity of the vibronic structure was similar to that of one-photon photoemission. On the other hand, the vibronic structure was significantly weak at photon energies slightly above (<0.4 eV) the resonance. The decrease in the vibronic structure was attributed to the nuclear motion of molecule in the intermediate state associated with LUMO+2.
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U2 - 10.1103/PhysRevB.80.113310
DO - 10.1103/PhysRevB.80.113310
M3 - Article
AN - SCOPUS:70350599546
SN - 1098-0121
VL - 80
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 11
M1 - 113310
ER -