Accessing surface Brillouin zone and band structure of picene single crystals

Abstract

We have experimentally revealed the band structure and the surface Brillouin zone of insulating picene single crystals (SCs), the mother organic system for a recently discovered aromatic superconductor, with ultraviolet photoelectron spectroscopy (UPS) and low-energy electron diffraction with laser for photoconduction. A hole effective mass of 2.24 m_0 and the hole mobility mu_h >= 9.0 cm^2/Vs (298 K) were deduced in Gamma-Y direction. We have further shown that some picene SCs did not show charging during UPS even without the laser, which indicates that pristine UPS works for high-quality organic SCs.

5 pages, 4 figures, Phys. Rev. Lett. 108, 226401 (2012)

References in corpus (4)

• Electronic Correlation effects in superconducting picene from ab-initio calculations
• Electronic Structure and Electron Correlation in LaFeAsO_{1-x}F_x and LaFePO_{1-x}F_x
• First-principles structural optimization and electronic structure of the superconductor picene for various potassium doping levels
• Electronic properties of molecular solids: the peculiar case of solid Picene

Cited by in corpus (4)

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• Hybridized electronic states in potassium-doped picene probed by soft x-ray spectroscopies
• Photophysics of pentacene-doped picene thin films