Modification of tantalum surfaces by scanning tunneling microscopy in an electrochemical cell

T. Thundat, L. A. Nagahara, P. I. Oden, Stuart Lindsay, M. A. George, W. S. Glaunsinger

Research output: Contribution to journalArticlepeer-review

28 Scopus citations

Abstract

The morphological evolution of tantalum surfaces induced by scanning in an electrochemical cell have been investigated by scanning tunneling microscopy (STM). Repeated scanning over the same region was found to create a surface with a reduced peak-to-peak corrugation. This phenomenon was observed for negative tip biases only, and was also found to occur at a slower rate while scanning in air. X-ray photoelectron spectroscopy shows layers of Ta2O5deposited anodically on samples imaged with STM.

Original languageEnglish (US)
Pages (from-to)3537-3541
Number of pages5
JournalJournal of Vacuum Science and Technology A: Vacuum, Surfaces and Films
Volume8
Issue number4
DOIs
StatePublished - Jul 1990

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

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