Triangular structures on tungsten diselenide induced and observed by scanning tunneling microscopy
作者:
S. Akari,
R. Mo¨ller,
K. Dransfeld,
期刊:
Applied Physics Letters
(AIP Available online 1991)
卷期:
Volume 59,
issue 2
页码: 243-245
ISSN:0003-6951
年代: 1991
DOI:10.1063/1.105979
出版商: AIP
数据来源: AIP
摘要:
By applying voltage pulses of about −5 V at the tip of a scanning tunneling microscope triangular structures have been created on the atomically flat WSe2surface. The evolution from a cluster‐like structure directly after the pulse to an equilateral triangle occurs within minutes. The growth of the triangles has been investigated for times up to 1 h. For a given orientation of the substrate all the triangles have the same orientation thereby reducing the sixfold symmetry at the atomic Se surface to the threefold symmetry of a full molecular WSe2layer.
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