| 摘 要： | Scientists have long been work-ing hard to identify laws un-derlying materials growth atmicroscopic level. With the devel-opment of new growth methods andcharacterization techniques on theatomic scale over the past decade,breakthroughs have been achieved.It is now generally acknowl-edged that atoms that are depositedon crystal surfaces, through a methodknown as molecular beam epitaxy,often form surfaces covered withnumerous small mounds rather thansmooth layers, if the substrate tem-perature i…
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