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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 28, Number 1
BKCSDE 28(1)
January 20, 2007

Title	Theoretical Study of Scanning Probe Microscope Images of VTe₂
Author	Sung Soo Park, Jeeyoung Lee, Wang Ro Lee, Kee Hag Lee*
Keywords	Scanning tunneling microscope image, Atomic force microscope image, IT-VTe2, Simulated STM and AFM images, Ab initio method
Abstract	Ab initio periodic Hartree-Fock calculations with the full potential and minimum basis set are applied to interpretation of scanning tunneling microscope (STM) and atomic force microscope (AFM) images on 1TVTe₂. Our results show that the simulated STM image shows asymmetry while the simulated AFM image shows the circular electron densities at the bright spots without asymmetry of electron density to agree with the experimental AFM image. The bright spots of both the STM and AFM images of VTe2 are associated with the surface Te atoms, while the patterns of bright spots of STM and AFM images are different.
Page	81 - 84
Full Text	PDF

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