Polarization-dependent electron affinity of LiNbO 3 surfaces

W. C. Yang, B. J. Rodriguez, A. Gruverman, R. J. Nemanich

Research output: Contribution to journalArticle

96 Scopus citations

Abstract

The use of ultra-violet photoelectron emission microscopy (PEEM) to image the polarization-dependent electron affinity of LiNbO 3 surfaces was analyzed. Investigations show polarity contrast between the positive and negative domains. The photon-energy-dependent contrast in the PEEM images of the surface leads to the photothreshold of negative domains. It was concluded that the threshold difference between the opposite domains lead to the variation of electron effinity induced by surface adsorbates.

Original languageEnglish (US)
Pages (from-to)2316-2318
Number of pages3
JournalApplied Physics Letters
Volume85
Issue number12
DOIs
StatePublished - Sep 20 2004

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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