Functional oxides and phenomena such as a 2D electron gas (2DEG) at oxide interfaces represent potential technological breakthroughs for post-CMOS electronics. Non-invasive techniques are required to study the surface chemistry and electronic structure, underlying their often unique electrical properties. The sensitivity of photoemission electron microscopy to chemistry and electronic structure makes it an invaluable tool for probing the near surface region of microscopic regions and domains of functional materials. We present results demonstrating a room temperature 2DEG at the (001)-SrTiO3 surface. The 2DEG is switched on by soft X-ray irradiation.

中文翻译：

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(001)-SrTiO3 表面的室温二维电子气

功能性氧化物和氧化物界面处的 2D 电子气 (2DEG) 等现象代表了后 CMOS 电子产品的潜在技术突破。需要非侵入性技术来研究表面化学和电子结构，这是它们通常独特的电特性的基础。光电电子显微镜对化学和电子结构的敏感性使其成为探测微观区域和功能材料域的近表面区域的宝贵工具。我们提供的结果证明了 (001)-SrTiO3 表面的室温 2DEG。2DEG 通过软 X 射线照射开启。