The structure and local chemical properties of boron-terminated tetravacancies in hexagonal boron-nitride

Autor: Cretu, Ovidiu, Lin, Yung-Chang, Koshino, Masanori, Tizei, Luiz H. G., Liu, Zheng, Suenaga, Kazutomo
Rok vydání: 2014
Předmět:
Druh dokumentu: Working Paper
DOI: 10.1103/PhysRevLett.114.075502
Popis: Imaging and spectroscopy performed in a low-voltage scanning transmission electron microscope (LV-STEM) are used to characterize the structure and chemical properties of boron-terminated tetravacancies in hexagonal boron nitride (h-BN). We confirm earlier theoretical predictions about the structure of these defects and identify new features in the electron energy-loss spectra (EELS) of B atoms using high resolution chemical maps, highlighting differences between these areas and pristine sample regions. We correlate our experimental data with calculations which help explain our observations.
Comment: 10 pages, 4 figures
Databáze: arXiv