Journal
SURFACE SCIENCE
Volume 461, Issue 1-3, Pages 137-145Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/S0039-6028(00)00554-9
Keywords
Auger electron spectroscopy; surface structure, morphology, roughness and topography
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The intercalation of VSe2 with K is investigated in situ by a new technique for imaging the near-surface atomic structure, which is based on forward focusing of backscattered electrons. It is shown that room-temperature deposition of a few K monolayers on to the VSe2(0001) surface results in drastic changes of the crystal structure. Both a considerable expansion of the crystal lattice (the interlayer Se-Se distance is increased by 75%) and a transition from 1T to 3R(I) structure are revealed. (C) 2000 Elsevier Science B.V. All rights reserved.
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