论文标题
共同装饰的准二维Gase层的光谱特性
Spectral properties of Co-decorated quasi 2-dimensional GaSe layer
论文作者
论文摘要
基于可靠的$ ab \：initio $计算和数值重新归一化方法，已经对具有CO ADATOM的二维GASE单层的系统研究进行了研究。结果表明，系统的稳定最低能量构型涉及位于GAOM上方的CO ADATOM。对于这种配置，可以证明系统的电子和磁性可以通过外部因素（例如磁场，门电压或温度）有效控制。此外，如果正确调整了GASE-CO系统，也可以表现出近藤效应。在CO ADATOM的局部密度，其磁场依赖性（呈现了近托峰的分裂以及电导的温度依赖性）中，伴有现象的发展在局部密度中，表现出典型的缩放量表，即典型的缩放量表。
Based on reliable $ab\:initio$ computations and the numerical renormalization group method, systematic studies on a two-dimensional GaSe monolayer with a Co adatom have been carried out. It is shown that the stable lowest-energy configuration of the system involves the Co adatom located over Ga atom. For such configuration, it is demonstrated that the electronic and magnetic properties of the system can be effectively controlled by means of external factors, such as magnetic field, gate voltage or temperature. Moreover, if properly tuned, the GaSe-Co system can also exhibit the Kondo effect. The development of the Kondo phenomenon is revealed in the local density of states of the Co adatom, its magnetic field dependence, which presents the splitting of the Kondo peak, as well as in the temperature dependence of the conductance, which exhibits scaling typical of the spin one-half Kondo effect.
