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Two-dimensional electron gas （2DEG） with high electron mobility is highly desired to study the emergent properties and to enhance future device performance.Here we report the formation of 2DEG with high mobility at the interface between rock-salt Ba O and perovskite Sr Ti O3.The interface consists of the ionically compensated Ba O1-δlayer and the electronically compensated Ti O2 layer,which is demonstrated as a perfect interface without lattice mismatch.The so-fo... 相似文献
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