报告摘要：Properties of matter depend sensitively on physical parameters that define them. Tailoring these parameters in a well controlled way often lead to new phenomena and new state of matter. Unfortunately our ability to tune and combinatorially manage these parameters is very limited, leaving a large universe for discovery untouched. Here we develop a novel technique with molecular beam epitaxy to tune continuously and independently the substrate lattice constant and chemical composition. Applying these to several epitaxial systems such as FeNi on GaAs(001), and Fe on Cu (001), we have obtained some new and interesting results.
