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Semiconductor-to-metal transition in an ultrathin interface: Cs /GaAs(110)
Journal article   Peer reviewed

Semiconductor-to-metal transition in an ultrathin interface: Cs /GaAs(110)

N DiNardo, T-M Wong and E Plummer
Physical review letters, v 65(17), pp 2177-2180
01 Jan 1990
PMID: 10042473

Abstract

Electronic excitation spectra (0 < or = h omega < 4 eV) of the ultrathin interface are measured at various stages of development. Spectral features that appear as a function of Cs coverage identify the semiconductor-to-metal transition. The semiconducting interface observed up to one Cs layer is characterized as a 2-D Mott insulator. Interfacial metallization upon Cs multilayer growth is identified by a metallic-excitation continuum and collective excitation related to the Cs surface plasmon.

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Collaboration types
Domestic collaboration
Web of Science research areas
Physics, Multidisciplinary
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