Spin-orbit coupling and electronic correlation effects in epitaxial graphene studied by surface transport

通过表面传输研究外延石墨烯中的自旋轨道耦合和电子关联效应

• 批准号: 470743742
• 负责人: Professor Dr. Christoph Tegenkamp
• 金额: --
• 依托单位: Professur Analytik an Festkörperoberflächen
• 依托单位国家: 德国
• 项目类别: Research Units
• 资助国家: 德国
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/470743742?language=en
• 关键词: Spin; orbit; coupling; electronic; correlation

Proximity coupling is a promising concept to tune graphene’s transport properties. By studying the impact of hybridization, symmetry, doping and quasiparticle interactions, controlled coupling to Rashba interface states, Mott-phases and metallic quantum films will be realized and analyzed by means of nanoscale- and magnetotransport. Charge carrier mobilities will be analyzed with respect to their concentration, spin-orbit coupling and ground state by temperature and B-field dependent measurements under control of intrinsic and interfacial defects. Besides the analysis of samples from project partners, our proposed work will focus on adsorption and intercalation of Pb, Sn, Bi, BiSb as well as organic molecules on various epitaxial graphene on insulating SiC substrates. By means of defined doping lattices, Klein tunneling quantum transport phenomena will be studied.

邻近耦合是一个很有前途的概念，以调整石墨烯的输运性质。通过研究杂化，对称性，掺杂和准粒子相互作用的影响，控制耦合到Rashba界面态，莫特相和金属量子膜将实现和分析的纳米尺度和磁输运。电荷载流子迁移率将分析其浓度，自旋轨道耦合和基态的温度和B-场依赖的测量控制下的本征和界面缺陷。除了对项目合作伙伴的样品进行分析外，我们计划的工作将集中在绝缘SiC衬底上的各种外延石墨烯上的Pb，Sn，Bi，BiSb以及有机分子的吸附和嵌入。通过定义的掺杂晶格，克莱因隧道量子输运现象将被研究。