Electron Arrays in Two Dimensions

二维电子阵列

• 批准号: 8713922
• 负责人: Arnold Dahm
• 金额: $ 38.87万
• 依托单位: Case Western Reserve University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1987
• 资助国家: 美国
• 起止时间: 1987-11-01 至 1991-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8713922&HistoricalAwards=false
• 关键词: Electron; Arrays; Two; Dimensions

Significant new experiments are planned to further elucidate the nature of the hexatic phase that the investigator identifies in the melting of the two-dimensional electron layer. Theories of the electron-ripplon interaction will be tested, the polaron state will be looked for in this system, and Bragg scattering of laser light from the electron dimples will be studied. Although in the crystal phase the electron velocity is large enough that the dimples don't form, the possibility exists that the dimples can form in the hexatic phase where the density of dislocations is small. Further study of the correlations in the classical electron fluid will be made. A search will be made for two- dimensional superconductivity in this layer since a small wake in the helium surface as an electron moves in an electric field provides an attractive potential for electron-electron pairing via this electron-ripplon coupling mode.

重要的新实验计划进一步阐明 研究者在以下物质中识别的六方相的性质 二维电子层的熔化。 理论 电子-ripplon相互作用将被测试，极化子 状态将在这个系统中寻找，和布拉格散射的 将研究来自电子凹坑的激光。 虽然 在晶体相中，电子速度足够大， 酒窝没有形成，可能存在的可能性， 可以在六方相中形成， 很小。 经典关联的进一步研究 电子流体将被制造出来。 我们将搜寻两个- 三维超导在这一层，因为一个小的尾流， 当电子在电场中运动时， 为电子-电子配对提供了吸引力 通过这种电子-ripplon耦合模式。