"Step bunching on TaC(910) due to attractive step-step interactions" by J.-K. Zuo, Tianjiao Zhang et al.
 

Abstract

Using scanning tunneling microscopy, we study the step configuration on TaC(910) which is vicinal to the (100) plane, miscut 6.34° toward the [010] direction. After annealing at ∼ 2100 °C, the surface is dominated by double-height steps which are bunched between relatively long intervening (100) terraces. The step-separation distribution is very skewed and sharply peaked. Monte Carlo simulations show that a strong, medium-range, repulsive step interaction A/x must be combined with a weak, long-range, attractive interaction, -B/x to fit the measured distribution. Possible physical origins for these interactions are discussed.

Department(s)

Physics, Astronomy, and Materials Science

Document Type

Article

DOI

https://doi.org/10.1103/PhysRevB.63.033404

Rights Information

© 2001 The American Physical Society

Publication Date

1-1-2001

Journal Title

Physical Review B - Condensed Matter and Materials Physics

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