2021
DOI: 10.1103/physrevlett.126.155901
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Abstract: Nanoscopic clustering in a 2D disordered phase is observed for oxygen on Ru(0001) at low coverages and high temperatures. We study the coexistence of quasi-static clusters (with a characteristic length of ∼ 9Å) and highly mobile atomic oxygen which diffuses between the energy-inequivalent, threefold hollow sites of the substrate. We determine a surprisingly low activation energy for diffusion of 385 ± 20 meV. The minimum of the O − O interadsorbate potential appears to be at lower separations than previously r… Show more

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Cited by 2 publications
(3 citation statements)
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References 41 publications
(60 reference statements)
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“…57 While the specular reflection gives an estimate of adsorbate coverage on the clean surface, the angular distribution provides insight in the time evolution of periodic structures being formed on the surface. 31,36 In the present work, CVD growth was performed at a set crystal temperature while monitoring the surface using repeated one-dimensional angular diffraction scans, where we observe the emergence and disappearance of additional superstructures followed by the formation of h-BN.…”
Section: Resultsmentioning
confidence: 96%
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“…57 While the specular reflection gives an estimate of adsorbate coverage on the clean surface, the angular distribution provides insight in the time evolution of periodic structures being formed on the surface. 31,36 In the present work, CVD growth was performed at a set crystal temperature while monitoring the surface using repeated one-dimensional angular diffraction scans, where we observe the emergence and disappearance of additional superstructures followed by the formation of h-BN.…”
Section: Resultsmentioning
confidence: 96%
“…In particular, previous h-BN studies using real space methods 24–27 concentrate on local order in completed h-BN structures, while reciprocal space studies 28–30 have provided information about long-range order. 31…”
Section: Introductionmentioning
confidence: 99%
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