Abstract
Structures of Sr adsorbed on InN (0001) surfaces are theoretically investigated by first-principles calculations. The adsorption energies of Sr on InN (0001) decrease with decreasing Sr coverage. An InN (0001)-(2 ×2) surface structure covered by a 1/4 monolayer of Sr at the T4 sites may be the most energetically favourable. Sr atoms may substitute indium atoms, or accumulate at the voids inside InN films. The interstitial Sr defects may act as a potential source of compensation for the p-type behaviour of Sr-doped InN at the surface.
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Wang, J., Wu, X., Dai, X. et al. First-principles study of Sr adsorption on InN (0001). Eur. Phys. J. B 73, 75–78 (2010). https://doi.org/10.1140/epjb/e2009-00406-x
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DOI: https://doi.org/10.1140/epjb/e2009-00406-x