Resolving atomic diffusion in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi>Ru</mml:mi><mml:mrow><mml:mo>(</mml:mo><mml:mn>0001</mml:mn><mml:mo>)</mml:mo></mml:mrow><mml:mo>−</mml:mo><mml:mi mathvariant="normal">O</mml:mi><mml:mo>(</mml:mo><mml:mn>2</mml:mn><mml:mo>×</mml:mo><mml:mn>2</mml:mn><mml:mo>)</mml:mo></mml:mrow></mml:math> with spiral high-speed scanning tunneling microscopy
نویسندگان
چکیده
An intermediate state in atomic diffusion processes the $\mathrm{O}(2\ifmmode\times\else\texttimes\fi{}2)$ layer on Ru(0001) is resolved with spiral high-speed scanning tunneling microscopy (STM). The of oxygen adlayer has been studied by density functional theory and STM. Transition proposes a migration pathway for adlayer. With scan geometries---a new approach to STM---the vacancy mobility highly covered surface determined be range 0.1 1 Hz. Experimental evidence along provided real space time.
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ژورنال
عنوان ژورنال: Physical review
سال: 2022
ISSN: ['0556-2813', '1538-4497', '1089-490X']
DOI: https://doi.org/10.1103/physrevb.105.035411