Atomic-resolution imaging of the polar (000<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mover><mml:mn>1</mml:mn><mml:mo>¯</mml:mo></mml:mover></mml:math>) surface of LiNbO<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mrow /><mml:mn>3</mml:mn></mml:msub></mml:math>in aqueous solution by frequency modulation atomic force microscopy

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  • Atomic-resolution imaging of the polar (000{1¯}) surface of LiNbO{3} in aqueous solution by frequency modulation atomic force microscopy

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Atomic resolution images of the polar (000{1¯}) surface of lithium niobate (LiNbO[3]) are achieved by frequency modulation atomic force microscopy operated at the solid-water interface. The measured data reveal a hexagonal surface unit cell. Its lattice constant corresponds to the bulk-truncated structure, suggesting that the high-temperature annealed surface does not reconstruct. Compared to the (000{1¯}) surface, high-resolution imaging on the oppositely charged (0001) surface is considerably more difficult to achieve. This finding is rationalized by density functional calculations that indicate a higher corrugation and softer bonds on the (000{1¯}) surface compared to the (0001) surface.

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  • Physical Review B

    Physical Review B 86 (7), 075468-, 2012-08-29

    American Physical Society

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