CAREER: Mesoscopic Phenomena and Band-Structure Engineering in Single-Layer and Bilayer Graphene

技术：宾夕法尼亚州立大学的这个教师早期职业发展（CAREER）项目的目标是在一种新发现的二维材料中探索介观物理：石墨烯。石墨烯是一种以六边形晶格排列的单层碳原子，具有一系列不寻常的物理特性，可能会导致新的二维物理学。紧密耦合的第二层（双层石墨烯）增强了系统的丰富性和复杂性，提供了更多有趣的机会。石墨烯由于其高度移动的电荷载体，也是一种有前途的高速电子材料。该项目的统一主题是使用各种基底和吸附物的几何，电学和化学操纵来调制和研究单层和双层石墨烯的电子性质。将创建介观限制结构，以探索石墨烯独特的能带结构，晶格对称性和自旋相互作用所产生的新现象。该项目的教育部分将为研究生和本科生研究人员提供职业培训。PI实验室和纳米科学领域的研究成果将通过校内和校外场所（包括当地图书馆和艺术节）向公众传播。PI将利用她作为宾夕法尼亚州立大学REU项目协调人的角色，吸引来自代表性不足群体的学生参与该项目。非技术性：宾夕法尼亚州立大学的教师早期职业发展（CAREER）项目的目标是探索一种新发现的二维材料：石墨烯的电子特性。 石墨烯是一种以六边形晶格排列的单层碳原子，具有一系列不寻常的物理特性，可能会导致新的二维物理学。 紧密耦合的第二层（双层石墨烯）增强了系统的丰富性和复杂性，提供了更多有趣的机会。石墨烯由于其高度移动的电荷载体，也是一种很有前途的高速电子新材料。该项目的统一主题是通过对石墨烯的几何、电学和化学操作在微米和纳米尺度上创建新颖的结构，并探索其电传输特性。将开发新的器件配置以利用石墨烯优异的电学特性。该项目的教育部分将为研究生和本科生研究人员提供职业培训。PI实验室和纳米科学领域的研究成果将通过校内和校外场所（包括当地图书馆和艺术节）向公众传播。PI将利用她作为宾夕法尼亚州立大学REU计划的共同协调员的角色，吸引来自代表性不足群体的学生参与该项目。

Technical:The goal of this Faculty Early Career Development (CAREER) project at the Pennsylvania State University is to explore mesoscopic physics in a newly discovered two-dimensional material: graphene. Graphene, a single sheet of carbon atoms arranged in a hexagonal lattice, possesses a set of unusual physical properties which may lead to new physics in two dimensions. A closely-coupled second layer (bilayer graphene) enhances the richness and complexity of the system, providing even more intriguing opportunities. Graphene is also a promising material for high-speed electronics thanks to its highly mobile charge carriers. The uniting theme of this project is to use geometrical, electrical and chemical manipulations of various substrates and adsorbates to modulate and study the electronic properties of single and bilayer graphene. Mesoscopic confinement structures will be created to explore new phenomena arising from graphene's unique band structure, lattice symmetry and spin interactions. The educational component of this project will provide career training for graduate and undergraduate researchers. Research results from the PI's lab and the field of nanoscience will be disseminated to the public through on- and off-campus venues including local libraries and the arts festival. The PI will use her role as a co-coordinator of the Penn State REU program to draw the participation of students from underrepresented groups in this project.Non-technical:The goal of this Faculty Early Career Development (CAREER) project at the Pennsylvania State University is to explore the electronic properties of a newly discovered two-dimensional material: graphene. Graphene, a single sheet of carbon atoms arranged in a hexagonal lattice, possesses a set of unusual physical properties which may lead to new physics in two dimensions. A closely coupled second layer (bilayer graphene) enhances the richness and complexity of the system, providing even more intriguing opportunities. Graphene is also a promising new material for high-speed electronics thanks to its highly mobile charge carriers. The uniting theme of this project is to create novel structures on the micro- and nano-sale through geometrical, electrical and chemical manipulations of graphene and to explore their electrical transport properties. New device configurations will be developed to take advantage of graphene's excellent electrical properties. The educational component of this project will provide career training for graduate and undergraduate researchers. Research results from the PI's lab and the field of nanoscience will be disseminated to the public through on- and off-campus venues including local libraries and the arts festival. The PI will use her role as a co-coordinator of the Penn State REU program to draw the participation of students from underrepresented groups in this project.