Growth of thin films of TiN on MgO(100) monitored by high-pressure RHEED

N. Pryds, Darrell Cockburn, K. Rodrigo, I. L. Rasmussen, J. Knudsen, J. Schou

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

Reflection high-energy electron diffraction (RHEED) operated at high pressure has been used to monitor the initial growth of titanium nitride (TiN) thin films on single-crystal (100) MgO substrates by pulsed laser deposition (PLD). This is the first RHEED study where the growth of TiN films is produced by PLD directly from a TiN target. At the initial stage of the growth (average thickness ∼2.4 nm) the formation of islands is observed. During the continuous growth the islands merge into a smooth surface as indicated by the RHEED, atomic force microscopy and field emission scanning electron microscopy. These observations are in good agreement with the three-dimensional Volmer-Weber growth type, by which three-dimensional crystallites are formed and later cause a continuous surface roughening. This leads to an exponential decrease in the intensity of the specular spot in the RHEED pattern as well.

Original languageEnglish (US)
Pages (from-to)705-710
Number of pages6
JournalApplied Physics A: Materials Science and Processing
Volume93
Issue number3
DOIs
StatePublished - Nov 1 2008

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)

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