Surface conduction on insulating BaTiO3 crystal suggesting an intrinsic surface electron layer

Yukio Watanabe, Motochika Okano, Akihiro Masuda

Research output: Contribution to journalArticlepeer-review

108 Citations (Scopus)


The possibility for atomically well-defined free surface of poled transparent insulating single crystals of a prototype ferroelectric system, BaTiO3, to conduct current in high vacuum was demonstrated. A surface electron layer was found. These results provide a theoretical basis for the wide applications of ultrasmall ferroelectrics.

Original languageEnglish
Pages (from-to)332-335
Number of pages4
JournalPhysical review letters
Issue number2
Publication statusPublished - Jan 8 2001
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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