Structure and Stability of Metal Surfaces: X-ray Experiments

该计划的目标是开发金属表面相行为的微观描述，特别是在高温下，波动的作用预计是重要的。通过高分辨率x射线散射，研究人员将研究重建和未重建表面的粗化、金属切面和表面熔化转变。此外，还将研究与重建相关的二维相变。该计划将有助于对真实金属表面的统计物理进行详细的微观理解。特别是，它将有助于我们理解金属表面的形貌随温度的变化，以及我们对金属平衡晶体形状的热行为的理解。

The goal of this program is to develop a microscopic description of metal surface phase behavior, especially at elevated temperatures where the role of fluctuations is expected to be important. By means of high-resolution x-ray scattering, the researchers will investigate roughening, metal facetting and surface-melting transformations of both reconstructed and unreconstructed surfaces. In addition the two-dimensional phase transformations associated with reconstructions will be investigated. The program will contribute to a detailed, microscopic understanding of the statistical physics of real metal surfaces. In particular, it will contribute to our understanding of the morphology of metal surfaces versus temperatures and to our understanding of the thermal behavior of metal equilibrium crystal shapes.