Equilibrium and Non-Equilibrium Defect Structure of Metal Surfaces

该项目解决了金属表面的结构和稳定性。部分工作涉及在稳态溅射生长条件下将平衡粗糙表面强制进入有序状态的方法。通过惰性技术控制或减少无序的能力对薄膜生长技术具有重要的影响。第二个研究领域是（110）平面附近银的平衡晶体形状（ECS）的测定。理解ECS是解释涉及银表面的生长、催化、扩散等的必要前提。项目的最后一部分涉及（110）基板上碱金属表面层中的表面相变和表面无序转变以及表面无序转变。本研究将在现有相变理论的背景下研究这种相变的相图。

This project addresses the structure and stability of metal surfaces. Part of the work deals with methods by which an equilibrium rough surface can be forced into an ordered state under steady-state sputter growth conditions. The ability to control or reduce disorder by an inert technique can have important consequences for film growth techniques. The second area of study is the determination of the equilibrium crystal shape (ECS) of silver near the (110) plane. An understanding of the ECS is a necessary prerequisite to interpretations of growth, catalysis, diffusion, etc. involving the silver surface. The final part of the project deals with surface phase transitions and surface disorder transitions and surface disorder transitions occuring in alkali metal surface layers on (110) substrates. The research will study the phase diagram of such transitions in the context of current theories of these phase transitions.