Abstract
The geometric structure of the TaC(310) surface has been investigated using high-resolution low-energy electron diffraction. An ideally truncated TaC(310) surface has a staircase geometry where each unit consists of a (100) terrace, three row spacings wide, separated by a single-height step. However, it is determined that the surface is reconstructed with both terrace width and step height tripled on average while the surface still retains the (310) orientation. In addition, a small number of double-height steps are found to coexist with the triple-height steps. Possible physical origins of these observations are discussed.
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