低维电子材料及其纳米器件的原位电输运表征

Novel low-dimensional electronic materials, low-dimensional electronic states, and artificial nanostructures attracted a lot of attention from the scientific and technical community, due to their exotic, spatially confined quantum states, superior tunability of their electronic properties and prospects for applications. Such tunability largely comes from the large surface-to-volume ratio of these electronic systems, making them highly susceptible to the surrounding environment. Based on previous experimental results by the applicant, this proposal outlined a plan to systematically study the effects of artificially engineered interactions in these low-dimensional electronic systems. Examples of tunable interactions include electron-electron interactions, spin-orbit interactions, etc. This project is going to clearly resolve the physics behind transport phenomena of low-dimensional materials and nanostructures, as well as to effectively explore new functionalities in the materials in question. Successful completion of this project will have a significant impact on the scientific and technical community.

新型低维电子材料、低维电子态和人工制造的纳米结构由于其奇异的空间受限的量子态、远远超出块体材料的可调控性和广阔的应用前景受到科技界的强烈关注。这些低维材料和纳米结构的可调控性相当一部分来源于其较大的表面体积比，因而更容易受到环境的影响。在申请人前期实验的基础上，本项目计划通过超高真空环境下的原位输运表征，系统地研究人工改变这些低维电子体系的相互作用，比如电子电子相互作用、自旋轨道耦合强度等，对这些低维材料和纳米结构物性的影响。本项目将揭示低维电子体系输运现象的内在物理原理，并有力地探索开发新型材料及其纳米复合结构的新功能，具有重要的学术与应用价值。

新型低维电子材料、低维电子态和人工制造的纳米结构由于其奇异的空间受限的量子态、远远超出块体材料的可调控性和广阔的应用前景受到科技界的强烈关注。这些低维材料和纳米结构的可调控性相当一部分来源于其较大的表面体积比，因而更容易受到环境的影响。在申请人前期实验的基础上，本项目通过超高真空环境下的原位输运表征，系统地研究人工改变这些低维电子体系的相互作用，比如电子电子相互作用、自旋轨道耦合强度等，对这些低维材料和纳米结构物性的影响。本项目揭示了低维电子体系输运现象的内在物理原理，并有力地探索开发新型材料及其纳米复合结构的新功能，具有重要的学术与应用价值。