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Noncontact atomic force microscopy and density functional theory studies of the (2×2) reconstructions of the polar AlN(0001) surface

AutorChaumeton, Florian; Robles, Roberto ; Pruneda, Miguel ; Lorente, Nicolás ; Eydoux, Benoit; Bouju, Xavier; Gauthier, Sébastien; Martrou, David
Fecha de publicación2016
EditorAmerican Physical Society
CitaciónPhysical Review B 94(16): 165305(2016)
ResumenCombined experimental and theoretical studies permit us to determine new protocols for growing by molecular beam epitaxy the technologically interesting N-rich aluminum nitride (AlN) surfaces. This is achieved by dosing the precursor gases at unusually low rates. With the help of calculated structures by using density functional theory and Boltzmann distribution of the reconstructed cells, we proposed to assign the measured surface obtained with a growth rate of 10 nm/h to a (2×2) reconstructed surface involving one additional N atom per unit cell. These N-rich AlN surfaces could open new routes to dope AlN layers with important implications in high-power and temperature technological applications.
Versión del editorhttps://doi.org/10.1103/PhysRevB.94.165305
URIhttp://hdl.handle.net/10261/159740
Identificadoresdoi: 10.1103/PhysRevB.94.165305
issn: 2469-9950
e-issn: 2469-9969
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