Accessing surface Brillouin zone and band structure of picene single crystals

Qian Xin, Steffen Duhm, Fabio Bussolotti, Kouki Akaike, Yoshihiro Kubozono, Hideo Aoki, Taichi Kosugi, Satoshi Kera, Nobuo Ueno

    Research output: Contribution to journalArticlepeer-review

    51 Citations (Scopus)

    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 a laser for photoconduction. A hole effective mass of 2.24m 0 and the hole mobility μ h 9.0cm2/Vs (298 K) were deduced in the Γ-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.

    Original languageEnglish
    Article number226401
    JournalPhysical Review Letters
    Volume108
    Issue number22
    DOIs
    Publication statusPublished - May 29 2012

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

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