Topic
Single crystal
About: Single crystal is a research topic. Over the lifetime, 59617 publications have been published within this topic receiving 870828 citations.
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TL;DR: In this article, the rates of oxidation of the (100), (111), (110) and (311) faces of a copper single crystal were determined at the temperatures 70°, 106°, 130°, 159°, and 178°C by measuring the increase in thickness of the oxide film as a function of time.
207 citations
206 citations
TL;DR: In this paper, the authors studied the effect of grain boundary misorientation on hot cracking tendency and showed that even in alloys of high cracking sensitivity, solidification cracks may be avoided when only sub-boundaries are present, i.e., when the grain boundary angle is below a critical value.
206 citations
TL;DR: In this paper, the authors used low-energy electron microscopy to investigate how graphene grows on smooth, clean Cu(111) and showed that surface diffusion limited by comparing simulations of the time evolution of island shapes with experiments.
Abstract: We use low-energy electron microscopy to investigate how graphene grows on Cu(111). Graphene islands first nucleate at substrate defects such as step bunches and impurities. A considerable fraction of these islands can be rotationally misaligned with the substrate, generating grain boundaries upon interisland impingement. New rotational boundaries are also generated as graphene grows across substrate step bunches. Thus, rougher substrates lead to higher degrees of mosaicity than do flatter substrates. Increasing the growth temperature improves crystallographic alignment. We demonstrate that graphene growth on Cu(111) is surface diffusion limited by comparing simulations of the time evolution of island shapes with experiments. Islands are dendritic with distinct lobes, but unlike the polycrystalline, four-lobed islands observed on (100)-textured Cu foils, each island can be a single crystal. Thus, epitaxial graphene on smooth, clean Cu(111) has fewer structural defects than it does on Cu(100).
205 citations
TL;DR: In situ 90° electric field-induced uniform magnetization rotation in single domain submicron ferromagnetic islands grown on a ferroelectric single crystal using x-ray photoemission electron microscopy is demonstrated.
Abstract: We demonstrate in situ 90\ifmmode^\circ\else\textdegree\fi{} electric field-induced uniform magnetization rotation in single domain submicron ferromagnetic islands grown on a ferroelectric single crystal using x-ray photoemission electron microscopy. The experimental findings are well correlated with micromagnetic simulations, showing that the reorientation occurs by the strain-induced magnetoelectric interaction between the ferromagnetic nanostructures and the ferroelectric crystal. Specifically, the ferroelectric domain structure plays a key role in determining the response of the structure to the applied electric field, resulting in three strain-induced regimes of magnetization behavior for the single domain islands.
205 citations