TY - JOUR
T1 - Electronic structure of pristine and K-doped solid picene
T2 - Nonrigid band change and its implication for electron-intramolecular-vibration interaction
AU - Okazaki, H.
AU - Wakita, T.
AU - Muro, T.
AU - Kaji, Y.
AU - Lee, X.
AU - Mitamura, H.
AU - Kawasaki, N.
AU - Kubozono, Y.
AU - Yamanari, Y.
AU - Kambe, T.
AU - Kato, T.
AU - Hirai, M.
AU - Muraoka, Y.
AU - Yokoya, T.
PY - 2010/11/10
Y1 - 2010/11/10
N2 - We use photoemission spectroscopy to study electronic structures of pristine and K-doped solid picene. The valence band spectrum of pristine picene consists of three main features with no state at the Fermi level (EF) while that of K-doped picene has three structures similar to those of pristine picene with new states near EF, consistent with the semiconductor-metal transition. The K-induced change cannot be explained with a simple rigid-band model of pristine picene but can be interpreted by molecular-orbital calculations considering electron-intramolecular-vibration interaction. Excellent agreement of the K-doped spectrum with the calculations points to importance of electron-intramolecular-vibration interaction in K-doped picene.
AB - We use photoemission spectroscopy to study electronic structures of pristine and K-doped solid picene. The valence band spectrum of pristine picene consists of three main features with no state at the Fermi level (EF) while that of K-doped picene has three structures similar to those of pristine picene with new states near EF, consistent with the semiconductor-metal transition. The K-induced change cannot be explained with a simple rigid-band model of pristine picene but can be interpreted by molecular-orbital calculations considering electron-intramolecular-vibration interaction. Excellent agreement of the K-doped spectrum with the calculations points to importance of electron-intramolecular-vibration interaction in K-doped picene.
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U2 - 10.1103/PhysRevB.82.195114
DO - 10.1103/PhysRevB.82.195114
M3 - Article
AN - SCOPUS:78649760802
VL - 82
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
SN - 0163-1829
IS - 19
M1 - 195114
ER -